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)


List details

Registration details

REACH registration record Registered substances
Factsheet URL external link [echa.europa.eu]
Tonnage band Tonnage Data Confidential
Submission type Individual
Registration type NONS

Lead registrant

Data about lead registrant for this substance are not available.


Registrant Address
Archroma Germany GmbH Kasteler Str. 45 65203 Wiesbaden Germany

Related substances

Related regulatory records

  • Registered substances
    Tonnage band: Tonnage Data Confidential
  • Registered substances
    Tonnage band: 100+ tonnes per annum
  • Registrants
    Tonnage band: 100+ tonnes per annum
  • Harmonised classification and labelling (CLP Annex VI) under the name reaction mass of 1,1'-((dihydroxyphenylene)bis(azo-3,1-phenylenazo(1-(3-dimethylaminopropyl)-1,2-dihydro-6-hydroxy-4-methyl-2-oxopyridine-5,3-diyl)))dipyridinium dichloride dihydrochloride, mixed isomers and 1-(1-(3-dimethylaminopropyl)-5-(3-((4-(1-(3-dimethylaminopropyl)-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-5-pyridinio-3-pyridylazo)phenylazo)-2,4(or2,6 or3,5)-dihydroxyphenylazo)phenylazo)-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-pyridyl)pyridinium dichloride
    Hazard Class and Category Codes: Skin Sens. 1:

Record history

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This version
July 11, 2019
  • CAS: 159405-95-5
  • Related internal registration record ID: 3019683480
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