Substance Information

NB: Registration status and tonnage

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Substance Infocard

IC

Azocolourants and Azodyes

EC / List no.: -

CAS no.: -

Mol. Formula:

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Key datasets

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Regulatory context

Here you can find all of the regulations and regulatory lists in which this substance appears, according to the data available to ECHA. This substance has been found in the following regulatory activities (directly, or inheriting the regulatory context of a parent substance):

REACH - Registration, Evaluation, Authorisation and Restriction of Chemicals Regulation
  • REACH Annex XVII. Substances for which certain uses are Restricted under REACH at EU level.
Construction Products Regulation
  • Construction Product Regulation - Annex I (3) - Hazardous Substances
    EU. Hazardous Substances for Purposes of Annex I (3) (Requirements for Construction Works), Regulation 305/2011/EU on Marketing of Construction Products, amended by Regulation 574/2014/EU, 28 May 2014

    This list contains a non-exhaustive inventory of substances taken from: (1) Table 3 of Annex VI to CLP; (2) the Candidate List of SVHCs; (3) Annex XIV of REACH (Authorisation List); (4) Annex XVII of REACH (Restrictions List); (5) F-gases subject to emission limits/reporting per Regulation 517/2014/EU; and (6) volatile organic compounds (VOCs) listed in the Ambient Air Directive 2008/50/EC. The basis of the list is Annex I(3) of the Construction Products Regulation 305/2011/EC, which stipulates that construction works must not have a high impact on human health or the environment as a result of: giving off toxic gas; emissions of dangerous substances, volatile organic compounds (VOC), greenhouse gases or dangerous particles into indoor or outdoor air; release of dangerous substances into drinking water, ground water, marine waters, surface waters or soil.

General Product Safety Directive
  • General Product Safety Directive - Hazardous Substances
    EU. Hazardous Substances for Purposes of General Product Safety Directive (2001/95/EC), 15 January 2002, amended by Reg 596/2009/EC, 18 July 2009

    This list contains a non-exhaustive inventory of substances that fall within the European Union's hazardous substance definitions, as provided on: (1) Table 3 of Annex VI to the CLP Regulation 1272/2008/EC; (2) Annex III of Directive 2000/54/EC (Biological Agents); Candidate List of SVHCs; and REACH Annexes XIV and XVII (Authorisation and Restriction lists). They can be considered hazardous for purposes of the General Product Safety Directive 2001/95/EC.

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Substance names and other identifiers

Regulatory process names
Azocolourants and Azodyes
Restriction list, Construction Product Regulation - Annex I (3) - Hazardous Substances, General Product Safety Directive - Hazardous Substances, Other
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Group members

This entry / group of substance has the following member substances:

Name EC / List no. CAS no. Association
A mixture of: disodium (6-(4-anisidino)-3-sulfonato-2-(3,5-dinitro-2-oxidophenylazo)-1-naphtholato)(1-(5-chloro-2-oxidophenylazo)-2-naphtholato)chromate(1-); trisodium bis(6-(4-anisidino)-3-sulfonato-2-(3,5-dinitro-2-oxidophenylazo)-1-naphtholato)chromate(1-) 405-665-4 118685-33-9 Official source
Disodium 5-[[4'-[[1-hydroxy-7-(phenylamino)-3-sulphonato-2-naphthyl]azo][1,1'-biphenyl]-4-yl]azo]salicylate 222-450-9 3476-90-2 Expert judgement
Disodium 8-[[4'-[(4-ethoxyphenyl)azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxynaphthalene-1,3-disulphonate 222-560-7 3530-19-6 Expert judgement
Disodium 7-hydroxy-8-[[4'-[[4-[[(p-tolyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]naphthalene-1,3-disulphonate 222-655-3 3567-65-5 Expert judgement
Disodium 4-amino-5-hydroxy-3-[[4'-[(4-hydroxyphenyl)azo][1,1'-biphenyl]-4-yl]azo]-6-(phenylazo)naphthalene-2,7-disulphonate 222-835-1 3626-28-6 Expert judgement
N,N'-(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(3-hydroxynaphthalene-2-carboxamide) 223-007-2 3692-05-5 Expert judgement
Disodium 5-[[4'-[[2,4-diamino-5-[(4-sulphophenyl)azo]phenyl]azo][1,1'-biphenyl]-4-yl]azo]salicylate 223-294-4 3811-71-0 Expert judgement
6,6'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxynaphthalene-1,3-disulphonic] acid 223-333-5 3841-14-3 Expert judgement
N,N'-(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis[3-oxobutyramide] 223-873-1 4104-12-5 Expert judgement
Tetrasodium 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydroxynaphthalene-2,7-disulphonate] 224-091-3 4198-19-0 Expert judgement
4'-chloro-3-hydroxy-2',5'-dimethoxy-2-naphthanilide 224-270-6 4273-92-1 Expert judgement
Disodium 4-amino-5-hydroxy-6-[[4'-[(4-hydroxyphenyl)azo][1,1'-biphenyl]-4-yl]azo]-3-[(4-nitrophenyl)azo]naphthalene-2,7-disulphonate 224-376-2 4335-09-5 Expert judgement
2,4-bis(2,4-diamino-5-methyl-1-benzenazo)toluene 226-541-4 5421-66-9 Expert judgement
Trisodium 5-[[4'-[[8-amino-1-hydroxy-7-[(p-nitrophenyl)azo]-3,6-disulphonato-2-naphthyl]azo]-4-biphenyl]azo]salicylate 226-545-6 5422-17-3 Expert judgement
4,4'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-hydroxy-N-(2-methoxyphenyl)naphthalene-2-carboxamide] 226-614-0 5437-88-7 Expert judgement
N,N'-(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis[2-[(2,4-dichlorophenyl)azo]-3-oxobutyramide] 227-783-3 5979-28-2 Expert judgement
Disodium 3-hydroxy-4-[[2-methyl-4-[(o-tolyl)azo]phenyl]azo]naphthalene-2,7-disulphonate 228-320-8 6226-80-8 Expert judgement
Disodium 8-[[4'-[(4-ethoxyphenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-7-hydroxynaphthalene-1,3-disulphonate 228-766-3 6358-29-8 Expert judgement
Disodium 4-hydroxy-3-[(o-tolyl)azo]-5-[[(p-tolyl)sulphonyl]amino]naphthalene-2,7-disulphonate 228-772-6 6358-43-6 Expert judgement
Trisodium 4-amino-5-hydroxy-3-[[4'-[[4-hydroxy-2-[(o-tolyl)amino]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-6-[(4-sulphonatophenyl)azo]naphthalene-2,7-disulphonate 228-784-1 6358-80-1 Expert judgement
2,2'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-oxo-N-phenylbutyramide] 228-789-9 6358-88-9 Expert judgement
Trisodium 5-[[4'-[[4-[(4-amino-7-sulphonato-1-naphthyl)azo]-6-sulphonato-1-naphthyl]azo][1,1'-biphenyl]-4-yl]azo]salicylate 228-826-9 6360-29-8 Expert judgement
Disodium 5-[[4'-[[2,6-diamino-3-methyl-5-[(4-sulphonatophenyl)azo]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-3-methylsalicylate 228-829-5 6360-54-9 Expert judgement
Disodium 3,3'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[2,4-diamino-5-methylbenzenesulphonate] 229-024-1 6405-94-3 Expert judgement
4-chloro-2-methylbenzenediazonium 248-281-0 27165-08-8 Expert judgement
Tetrasodium [μ-[[3,3'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonato]](8-)]]dicuprate(4-) 249-008-8 28407-37-6 Expert judgement
Disodium [5-[[4'-[[2,6-dihydroxy-3-[(2-hydroxy-5-sulphophenyl)azo]phenyl]azo][1,1'-biphenyl]-4-yl]azo]salicylato(4-)]cuprate(2-) 240-221-1 16071-86-6 Expert judgement
Tetrasodium [μ-[[6,6'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxynaphthalene-1,3-disulphonato]](8-)]]dicuprate(4-) 240-298-1 16143-79-6 Expert judgement
Disodium 2,2'-[(3,3'-dimethoxy-4,4'-biphenylylene)bis[azo(methylimino)]]di(ethanesulphonate) 241-085-6 17011-51-7 Expert judgement
2,2'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(4-chlorophenyl)-3-oxobutyramide] 241-469-3 17453-73-5 Expert judgement
3,3'-dimethoxy[1,1'-biphenyl]-4,4'-bis(diazonium) 243-681-1 20282-70-6 Expert judgement
Chromate(3-), bis[3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-1-naphthalenesulfonato(3-)]-, trihydrogen, nitro derivs. 271-881-9 68610-93-5 Expert judgement
3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)diazo]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonic] acid, sodium salt, compound with 2,2'-iminodiethanol 273-433-8 68966-43-8 Expert judgement
3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)diazo]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonic] acid, sodium salt 273-439-0 68966-50-7 Expert judgement
Tetrasodium 2,2'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis[azo(2-amino-5-hydroxy-7-sulphonato-6,1-naphthylene)azo]]bis[5-nitrobenzoate] 274-429-9 70210-33-2 Expert judgement
Disodium 4,4'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis[iminocarbonyl(2-hydroxy-4,1-phenylene)azo]]bis(3-hydroxynaphthalene-1-sulphonate) 274-498-5 70247-69-7 Expert judgement
Cuprate(2-), [3-[[2,4-dihydroxy-3-[(4-nitro-2-sulfophenyl)azo]phenyl]azo]-2-hydroxy-5-nitrobenzenesulfonato(4-)]-, sodium 284-054-2 84777-26-4 Expert judgement
Sodium bis[4-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-5-hydroxy-2-methylbenzene-1-sulphonamidato(2-)]chromate(1-) 284-204-7 84812-61-3 Expert judgement
4-amino-6-[[4-[[[4-[(2,4-dihydroxyphenyl)azo]phenyl]amino]sulphonyl]phenyl]azo]-5-hydroxy-3-[(4-nitrophenyl)azo]naphthalene-2,7-disulphonic acid, potassium salt 284-407-0 84878-17-1 Expert judgement
Sodium [3-[[2,4-dihydroxy-5-[(4-nitro-2-sulphophenyl)azo]phenyl]azo]-2-hydroxy-5-nitrobenzene-1-sulphonato(4-)]ferrate(1-) 284-412-8 84878-22-8 Expert judgement
2,5-dichloro-4-[[2-(dibutylamino)-4-methyl-6-[[2-(4-sulphophenyl)ethyl]amino]-5-pyrimidinyl]azo]benzenesulphonic acid, sodium salt 284-748-5 84962-50-5 Expert judgement
Chromate(3-), [3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-2-hydroxy-5-nitrobenzenesulfonato(3-)][3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonato(3-)]-, sodium 284-915-2 84989-26-4 Expert judgement
3-hydroxy-4-[[4-[[4-[(2-hydroxy-6-sulpho-1-naphthyl)azo]-o-tolyl]methyl]-m-tolyl]azo]naphthalene-2,7-disulphonic acid, sodium salt 285-155-4 85030-31-5 Expert judgement
Chromate(3-), bis[2-hydroxy-3-[(2-hydroxy-1-naphthalenyl)azo]-5-nitrobenzenesulfonato(3-)]-, sodium 285-239-0 85049-67-8 Expert judgement
Cuprate(2-), [μ-[[3,3'-[methylenebis[(4,6-dihydroxy-3,1-phenylene)azo]]bis[4-hydroxy-5-nitrobenzenesulfonato]](6-)]]di-, sodium 285-998-8 85186-15-8 Expert judgement
Disodium 3,3'-[iminobis(4,1-phenyleneazo)]bis[5-(benzoylamino)-4-hydroxynaphthalene-2,7-disulphonate] 286-385-8 85223-30-9 Expert judgement
3,3'-methylenebis[6-[[2,4-dihydroxy-5-[(4-sulphophenyl)azo]phenyl]azo]benzoic] acid, sodium salt 286-391-0 85223-35-4 Expert judgement
Sodium 1-amino-4-[[(aminosulphonyl)-4-methylphenyl]amino]-9,10-dihydro-9,10-dioxoanthracene-2-sulphonate 286-574-5 85280-21-3 Expert judgement
Trisodium 5-[[4-chloro-6-(methylphenylamino)-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(4-methoxy-2-sulphonatophenyl)azo]naphthalene-2,7-disulphonate 288-026-0 85631-77-2 Expert judgement
Benzenesulfonic acid, 2-methyl-5-nitro-, alk. cond. products, sodium salts 290-742-3 90218-65-8 Expert judgement
Tetralithium 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonate] 275-603-7 71550-22-6 Expert judgement
Benzenesulfonic acid, 2-amino-5-nitro-, monosodium salt, diazotized, coupled with diazotized 3-aminobenzenesulfonic acid monosodium salt, diazotized 2-[(4-aminophenyl)amino]-5-nitrobenzenesulfonic acid monosodium salt and 4-[(2-hydroxy-3,5-dinitrophenyl)azo]-1,3-benzenediol 276-520-9 72245-21-7 Expert judgement
4-chloroaniline 203-401-0 106-47-8 Expert judgement
3,3'-dimethoxybenzidine 204-355-4 119-90-4 Expert judgement
4,4'-bi-o-toluidine 204-358-0 119-93-7 Expert judgement
6-methoxy-m-toluidine 204-419-1 120-71-8 Expert judgement
2,4,5-trimethylaniline 205-282-0 137-17-7 Expert judgement
4,4'-thiodianiline 205-370-9 139-65-1 Expert judgement
5,5'-diphenyl-3,3'-bis(4-nitrophenyl)-2,2'-(3,3'-dimethoxybiphenyl-4,4'-ylene)ditetrazolium dichloride 206-067-4 298-83-9 Expert judgement
Tetrasodium 6,6'-((3,3'-dimethyl-(1,1'-biphenyl-4,4'diyl)bis(azo)bis(4-amino-5-hydroxy-1,3-naphthalenedisulphonate) 206-242-5 314-13-6 Expert judgement
Disodium 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis(4-aminonaphthalene-1-sulphonate) 209-358-4 573-58-0 Expert judgement
4-methoxy-m-phenylenediamine 210-406-1 615-05-4 Expert judgement
4,4'-methylenedi-o-toluidine 212-658-8 838-88-0 Expert judgement
Disodium 3,3'-((3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(azo)bis(4-aminonaphthalene-1-sulphonate) 213-594-3 992-59-6 Expert judgement
3,3'-(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis[2,5-bis(p-nitrophenyl)-2H-tetrazolium] dichloride 214-665-1 1184-43-6 Expert judgement
4-aminoazobenzene 200-453-6 60-09-3 Expert judgement
o-anisidine 201-963-1 90-04-0 Expert judgement
2-naphthylamine 202-080-4 91-59-8 Expert judgement
3,3'-dihydroxy-N,N'-(3,3'-dimethoxybiphenyl-4,4'-diyl)di-2-naphthamide 202-108-5 91-92-9 Expert judgement
3,3'-dichlorobenzidine 202-109-0 91-94-1 Expert judgement
N,N'-(3,3'-dimethylbiphenyl-4,4'-ylene)di(acetoacetamide) 202-111-1 91-96-3 Expert judgement
Biphenyl-4-ylamine 202-177-1 92-67-1 Expert judgement
Benzidine 202-199-1 92-87-5 Expert judgement
o-toluidine 202-429-0 95-53-4 Expert judgement
4-chloro-o-toluidine 202-441-6 95-69-2 Expert judgement
4-methyl-m-phenylenediamine 202-453-1 95-80-7 Expert judgement
4-o-tolylazo-o-toluidine 202-591-2 97-56-3 Expert judgement
5-nitro-o-toluidine 202-765-8 99-55-8 Expert judgement
4,4'-methylenebis[2-chloroaniline] 202-918-9 101-14-4 Expert judgement
4,4'-methylenedianiline 202-974-4 101-77-9 Expert judgement
4,4'-oxydianiline 202-977-0 101-80-4 Expert judgement
Trisodium 4-hydroxy-7-[[[[5-hydroxy-7-sulphonato-6-[(o-tolyl)azo]-2-naphthyl]amino]carbonyl]amino]-3-[(2-methyl-4-sulphonatophenyl)azo]naphthalene-2-sulphonate 229-163-8 6420-43-5 Expert judgement
Disodium 3-[[4'-[(6-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-1-sulphonate 229-250-0 6449-35-0 Expert judgement
Disodium 8-((3,3'-dimethyl-4'-(4-(4-methylphenylsulphonyloxy)phenylazo)(1,1'-biphenyl)-4-yl)azo)-7-hydroxynaphthalene-1,3-disulphonate 229-272-0 6459-94-5 Expert judgement
2,2'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-oxo-N-phenylbutyramide] 229-388-1 6505-28-8 Expert judgement
4,4'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one] 229-389-7 6505-29-9 Expert judgement
Disodium 8-[[3,3'-dimethoxy-4'-[[4-[[(p-tolyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxynaphthalene-1,3-disulphonate 229-469-1 6548-30-7 Expert judgement
Disodium 5-[[4'-[(2,6-diamino-3-methyl-5-sulphonatophenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]salicylate 229-639-5 6637-88-3 Expert judgement
Trisodium [μ-[7-[[4'-[[6-anilino-1-hydroxy-3-sulpho-2-naphthyl]azo]-3,3'-dihydroxy[1,1'-biphenyl]-4-yl]azo]-8-hydroxynaphthalene-1,6-disulphonato(7-)]]dicuprate(3-) 229-687-7 6656-03-7 Expert judgement
Trisodium 2-[[2-amino-6-[[4'-[(3-carboxylato-4-hydroxyphenyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-5-hydroxy-7-sulphonato-1-naphthyl]azo]-5-nitrobenzoate 229-801-5 6739-62-4 Expert judgement
2,2'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide] 229-920-2 6837-37-2 Expert judgement
4,4'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-(p-tolyl)-3H-pyrazol-3-one] 229-986-2 6883-91-6 Expert judgement
2,2'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2-methylphenyl)-3-oxobutyramide] 230-458-9 7147-42-4 Expert judgement
2,2'-[(3,3'-dimethyl-4,4'-biphenylylene)bis(azo)]bis[4-(1,1,3,3-tetramethylbutyl)phenol] 230-616-7 7218-82-8 Expert judgement
4,4'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-hydroxy-N-phenylnaphthalene-2-carboxamide] 233-354-1 10127-03-4 Expert judgement
Nitrous acid, reaction products with 4-methyl-1,3-benzenediamine hydrochloride
This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 21010.
232-341-8 8005-78-5 Expert judgement
Hexasodium 5,5'-[(3,7-disulphonato-1,5-naphthylene)bis[azo(6-hydroxy-3,1-phenylene)azo[6(or 7)-sulphonato-4,1-naphthylene]azo[1,1'-biphenyl]-4,4'-diylazo]]bis(salicylate) 232-397-3 8014-91-3 Expert judgement
3,3'-(3,3'-dimethoxy-4,4'-biphenylene)bis(2,5-diphenyl-2H-tetrazolium) chloride 217-488-8 1871-22-3 Expert judgement
Disodium 4-amino-3-[[4'-[(2-amino-8-hydroxy-6-sulphonatonaphthyl)azo][1,1'-biphenyl]-4-yl]azo]naphthalene-1-sulphonate 217-709-8 1937-35-5 Expert judgement
Disodium 4-amino-3-[[4'-[(2,4-diaminophenyl)azo][1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate 217-710-3 1937-37-7 Expert judgement
Tetrasodium 3,3'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydroxynaphthalene-2,7-disulphonate] 218-432-5 2150-54-1 Expert judgement
Disodium 8,8'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis(7-hydroxynaphthalene-1-sulphonate) 218-959-0 2302-97-8 Expert judgement
Disodium 4-amino-3-[[4'-[(1-hydroxy-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]naphthalene-1-sulphonate 219-381-1 2429-70-1 Expert judgement
Disodium 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis(4-hydroxynaphthalene-1-sulphonate) 219-382-7 2429-71-2 Expert judgement
Trisodium 5-amino-3-[[4'-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-2,7-disulphonate 219-384-8 2429-73-4 Expert judgement
Tetrasodium 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonate] 219-385-3 2429-74-5 Expert judgement
Disodium 5-[[4'-[(1-amino-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate 219-387-4 2429-79-0 Expert judgement
Disodium 3-amino-4-[[4'-[[4-[[(p-tolyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]naphthalene-2,7-disulphonate 219-389-5 2429-80-3 Expert judgement
Tetrasodium 5-[[4'-[[2,6-diamino-3-[[8-hydroxy-3,6-disulphonato-7-[(4-sulphonato-1-naphthyl)azo]-2-naphthyl]azo]-5-tolyl]azo][1,1'-biphenyl]-4-yl]azo]salicylate 219-390-0 2429-81-4 Expert judgement
Disodium 5-[[4'-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate 219-391-6 2429-82-5 Expert judgement
Disodium 4-amino-3-[[4'-[(2,4-diamino-5-methylphenyl)azo][1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate 219-392-1 2429-83-6 Expert judgement
Disodium 5-[[4'-[(2-amino-8-hydroxy-6-sulphonato-1-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate 219-393-7 2429-84-7 Expert judgement
Disodium 4-amino-5-hydroxy-6-[[4'-[(2-hydroxy-1-naphthyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]naphthalene-1,3-disulphonate 219-964-0 2586-57-4 Expert judgement
Disodium 5-[[4'-[[2,6-diamino-3-methyl-5-[(4-sulphonatophenyl)azo]phenyl]azo][1,1'-biphenyl]-4-yl]azo]salicylate 219-965-6 2586-58-5 Expert judgement
Tetrasodium 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonate] 220-012-1 2602-46-2 Expert judgement
Tetrasodium 6,6'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxynaphthalene-1,3-disulphonate] 220-026-8 2610-05-1 Expert judgement
Disodium 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis(4-aminonaphthalene-1-sulphonate) 220-691-4 2868-75-9 Expert judgement
Disodium 5-[[4'-[[2,4-dihydroxy-3-[(4-sulphonatophenyl)azo]phenyl]azo][1,1'-biphenyl]-4-yl]azo]salicylate 220-768-2 2893-80-3 Expert judgement
3,3'-(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis[5-[4-(aminothioxomethyl)phenyl]-2-(p-nitrophenyl)-2H-tetrazolium] dichloride 253-257-8 36889-43-7 Expert judgement
3,3'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis[imino(1-acetyl-2-oxoethane-1,2-diyl)azo]]bis[bis(3-aminopropyl)(p-methoxybenzyl)methylammonium] dichloride 255-154-3 40948-42-3 Expert judgement
Trisodium 7-[[4-chloro-6-[(3-sulphonatophenyl)amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(4-methoxy-2-sulphonatophenyl)azo]naphthalene-2-sulphonate 264-721-4 64181-81-3 Expert judgement
Tetrasodium 4,4'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-hydroxynaphthalene-2,7-disulphonate] 265-533-5 65151-33-9 Expert judgement
Tetrasodium 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-(acetylamino)-4-hydroxynaphthalene-2,7-disulphonate] 267-711-8 67906-44-9 Expert judgement
2,2'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-nonylphenol] 268-048-7 67990-27-6 Expert judgement
N,N'-(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis[3-oxobutyramide], disodium salt 271-328-1 68540-94-3 Expert judgement
Sodium [4,6-dihydroxy-3-[(2-hydroxyphenyl)azo]naphthalene-2-sulphonato(3-)]hydroxychromate(1-) 304-514-9 94276-29-6 Expert judgement
Sodium [4,6-dihydroxy-5-[(2-hydroxyphenyl)azo]naphthalene-2-sulphonato(3-)]hydroxychromate(1-) 304-515-4 94276-30-9 Expert judgement
C.I. Direct Blue 173 602-586-9 12235-72-2 Expert judgement
Benzoic acid, 5-((4'-((8-((2,4-diaminophenyl)azo)-1-hydroxy-3,6-disulfo-2-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-2-hydroxy-, trisodium salt 610-290-6 4623-91-0 Expert judgement
1,3,6-Naphthalenetrisulfonic acid, 8-hydroxy-7-((4'-((2-hydroxy-1-naphthalenyl)azo)-(1,1'-biph 613-540-2 6426-67-1 Expert judgement
C.I. Direct Blue 160 602-188-5 12222-02-5 Expert judgement
C.I. Direct Green 85 615-757-8 72390-60-4 Expert judgement
1-Naphthalenesulfonic acid, 4-amino-3-((4'-((2-hydroxy-8-sulfo-1-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-, sodium salt 608-132-6 2769-07-5 Expert judgement
Benzoic acid, 2-hydroxy-5-((4'-(3-(4-sulfophenyl)-1-triazenyl)(1,1'-biphenyl)-4-yl)azo)-, disodium salt 613-704-3 6486-29-9 Expert judgement
C.I. Direct Green 8:1 616-281-3 76012-70-9 Expert judgement
Benzoic acid, 3,3'-((1,1'-biphenyl)-4,4'-diylbis(azo))bis(6-hydroxy-, disodium salt 613-669-4 6472-91-9 Expert judgement
C.I. Direct Violet 21 613-657-9 6470-45-7 Expert judgement
2,7-Naphthalenedisulfonic acid, 5-((diamino((8-hydroxy-6-sulfo-2-naphthalenyl)azo)phenyl)azo)-4-hydroxy-3-((4'-((4-hydroxyphenyl)azo)(1,1'-biphenyl)-4-yl)azo)-, trisodium salt 603-606-9 1324-87-4 Expert judgement
2-Naphthalenesulfonic acid, 3,3'-((1,1'-biphenyl)-4,4'-diylbis(azo))bis(7-amino-4-hydroxy-, disodium salt 607-354-0 2429-75-6 Expert judgement
C.I. Acid Red 158 616-835-4 8004-55-5 Expert judgement
Cuprate(4-), [[]µ-[[][[]3,3'-methylenebis[[]6-[[]2-[[]5-[[]2-(2,4-disulfophenyl)diazenyl]-2-(hydroxy-[?]O)-4-hydroxyphenyl]diazenyl-[?]N1]benzoato-[?]O]](8-)]]di-, sodium (1:4) 600-312-2 102424-25-9 Expert judgement
C.I. Direct Blue 201 612-030-7 60800-55-7 Expert judgement
2- Naphthalenesulfonic acid, 5,5'-[[1,1'-biphenyl]-4,4'-diylbis(2,1-diazenediyl)]bis[6- amino-4-hydroxy-, sodium salt (1:2) 607-822-4 2586-60-9 Expert judgement
2-Naphthalenesulfonic acid, 3,3'-((1,1'-biphenyl)-4,4'-diylbis(azo))bis(6-amino-4-hydroxy-, disodium salt 609-223-3 3626-23-1 Expert judgement
C.I. Acid Black 29 601-854-2 12217-14-0 Expert judgement
Benzoic acid, 5-((4'-((2,6-diamino-3-methyl-5-((4-sulfophenyl)azo)phenyl)azo)-3,3'-dimethyl(1,1'-biphenyl)-4-yl)azo)-2-hydroxy-, disodium salt 613-685-1 64743-15-3 Expert judgement
C.I. Acid Red 24 611-701-1 5858-30-0 Expert judgement
2-Naphthalenecarboxamide, N,N'-(3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(3-hydroxy-, disodium salt - 52735-88-3 Expert judgement
5,5'-(3,3'-Dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(1-(4-nitrophenyl)-3-phenylformazan) - 63469-14-7 Expert judgement
Benzamide, 3,3'-((3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(imino(1-acetyl-2-oxo-2,1-ethanediyl)-2,1-diazenediyl))bis(4-methyl- - 64441-14-1 Expert judgement
Butanamide, 2,2'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(2,1-diazenediyl))bis(N-(chlorophenyl)-3-oxo- - 72845-99-9 Expert judgement
2,7-Naphthalenedisulfonic acid, 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(2,1-diazenediyl))bis(5-amino-4-hydroxy-, lithium sodium salt (1:1:3) - 75659-72-2 Expert judgement
2,7-Naphthalenedisulfonic acid, 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(2,1-diazenediyl))bis(5-amino-4-hydroxy-, lithium sodium salt (1:2:2) - 75659-73-3 Expert judgement
1-Naphthalenesulfonic acid, 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(2,1-diazenediyl))bis(4-hydroxy-, lithium salt (1:2) - 75673-34-6 Expert judgement
1-Naphthalenesulfonic acid, 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(2,1-diazenediyl))bis(4-hydroxy-, lithium sodium salt (1:1:1) - 75673-35-7 Expert judgement
2,7-Naphthalenedisulfonic acid, 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(2,1-diazenediyl))bis(5-amino-4-hydroxy-, lithium sodium salt (1:3:1) - 75752-17-9 Expert judgement
Benzoic acid, 4,4'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(2,1-diazenediyl(2-acetyl-1-oxo-2,1-ethanediyl)imino))bis-, 1,1'-dibutyl ester - 820212-95-1 Expert judgement
Copper, 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(2,1-diazenediyl))bis(5-amino-4-hydroxy-2,7-naphthalenedisulfonate) morpholine ammonium lithium sodium complexes - 96591-22-9 Expert judgement
Chromium dye from chromium acetate, 3-hydroxy-4-((2-hydroxynaphth-1-yl)azo)-1-naphthalenesulfonic acid and 2,5-dichloro-4-((4,5-dihydro-4-((2-hydroxy-5-nitrophenyl)azo)-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulfonic acid - 68610-94-6 Expert judgement
Chromate(3-), bis(2-(hydroxy-kappaO)-3-(2-(2-(hydroxy-kappaO)-7-((methoxycarbonyl)amino)-1-naphthalenyl)diazenyl-kappaN1)-5-nitrobenzenesulfonato(3-))-, sodium - 102322-77-0 Expert judgement
Benzamide, 4-((4-((5-cyano-2,6-bis(2-methoxyethyl)-4-methyl-3-pyridinyl)azo)-2,5-dimethylphenyl)azo)-N-(3-(2-phenoxyethoxy)propyl)- - 102213-06-9 Expert judgement
2,7-Naphthalenedisulfonic acid, 5-((4-chloro-6-phenyl-1,3,5-triazin-2-yl)amino)-4-hydroxy-3-(phenylazo)-, sodium salt - 102616-50-2 Expert judgement
Benzoic acid, 2-((1-(((4'-((2-((4-(acetylamino)-2-carboxyphenyl)azo)-1,3-dioxobutyl)amino)-3,3'-dimethyl(1,1'-biphenyl)-4-yl)amino)carbonyl)-2-oxopropyl)azo)-5-((((4-sulfophenyl)amino)carbonyl)amino)-, trisodium salt - 104744-49-2 Expert judgement
Organic azotol dye KO - 12572-71-3 Expert judgement
4-amino-3-[[4-[4-[(1-amino-4-sulfonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonic acid - 14684-01-6 Expert judgement
[No public or meaningful name is available] - 28261-70-3 Expert judgement
C.I. Direct Orange 1 - 54579-28-1 Expert judgement
C.I. Acid Red 167 - 61901-41-5 Expert judgement
Benzoic acid, 5-((4'-((2,4-diamino-5-((2,4-disulfophenyl)azo)phenyl)azo)(1,1'-biphenyl)-4-yl)azo)-2-hydroxy-, trisodium salt - 6483-77-8 Expert judgement
2,7-Naphthalenedisulfonic acid, 5-amino-4-hydroxy-3-((4-((4-((2-hydroxy-4-(phenylamino)phenyl)azo)phenyl)amino)-3-sulfophenyl)azo)- - 69929-14-2 Expert judgement
C.I. Direct Brown 101 - 8626-29-7 Expert judgement

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