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
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Neither ready nor inherent biodegradability.
Key value for chemical safety assessment
- Biodegradation in water:
- not biodegradable
- Type of water:
- freshwater
Additional information
Ready biodegradability was assessed according to OECD guideline 301 E.
Inherent biodegradability was assessed according to OECD guideline 302 B.
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