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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
appearance / physical state / colour
Type of information:
other: company data
Adequacy of study:
key study
Study period:
not specified
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Company data without many specificications. As the data are coming from the manufacturer they are considered as reliable, with acceptabe restrictions.

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
1991

Materials and methods

Principles of method if other than guideline:
optical assessment of the appearance of the test item
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Dilithium disodium (5,5'-diamino-(μ-4,4'-dihydroxy-1:2-κ-2,O4,O4',-3,3'-[3,3'-dihydroxy-1:2-κ-2-O3,O3'-biphenyl-4,4'-ylenebisazo-1:2-(N3,N4-η:N3',N4'-η)]-dinaphthalene-2,7-disulfonato(8)))dicuprate(2-)
EC Number:
407-230-4
EC Name:
Dilithium disodium (5,5'-diamino-(μ-4,4'-dihydroxy-1:2-κ-2,O4,O4',-3,3'-[3,3'-dihydroxy-1:2-κ-2-O3,O3'-biphenyl-4,4'-ylenebisazo-1:2-(N3,N4-η:N3',N4'-η)]-dinaphthalene-2,7-disulfonato(8)))dicuprate(2-)
Cas Number:
126637-70-5
Molecular formula:
Hill formula: C32 H16 Cu2 Li2 N6 Na2 O16 S4 CAS formula: C32 H16 Cu2 N6 O16 S4. 2Li 2Na
IUPAC Name:
dicopper(2+) dilithium(1+) disodium 4,4'-bis[2-(8-amino-1-oxido-3,6-disulfonatonaphthalen-2-yl)diazen-1-yl]-[1,1'-biphenyl]-3,3'-bis(olate)

Results and discussion

Physical state at 20°C and 1013 hPa:
solid
Form / colour / odour
Form:
powder
Colour:
Blue
Odour:
other: no data

Applicant's summary and conclusion