Registration Dossier
Registration Dossier
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A mixture of isomers of: 1,1'-[(3,5(or 2,4 or 4,6 or 2,6)-dihydroxy-o(or m or p)-phenylene)bis(azo-meta-phenyleneazo{1-[3-(dimethylamino)propyl]-1,2-dihydro-6-hydroxy-4-methyl-2-oxopyridine-5,3-diyl})]dipyridinium-dichloride-dihydrochloride; 1-(1-[3-(dimethylamino)propyl]-5-{3-[x-(4-{1-[3-(dimethylamino)propyl]-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-5-pyridinio-3-pyridylazo}phenylazo)-2,4(or 2,6 or 3,5 or 4,6)-dihydroxyphenylazo]phenylazo}-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-pyridyl)pyridinium-dichloride-dihydrochloride (where x is variable)
EC number: 404-540-1 | CAS number: 159405-95-5 BRAUN HM 2763; BROWN HM 2763; BRUN HM 2763; BRUNO HM 2763
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
Low potential for adsorption is expected.
Key value for chemical safety assessment
- Koc at 20 °C:
- 3.162
Additional information
According to column 2 of Annex VIII of the REACH Regulation (EC 1907/2006), the study on adsorption/desorption does not to be conducted if the physicochemical properties of the test item indicate low adsorpton potential, such as a low octanol/water partition coefficient. As test item has a log Kow < 0 and a high water solubility, it can be concluded that the substance has a low adsorption potential and the study on adsorption/desorption is not run.
A default value for Koc of non-hydrophobic substances is proposed by EUSES 2.2.0; this value is 3.162 l/kg and it is used in the chemical safety assessment.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
