Substance Information

Substance Infocard

IC

7-hydroxy-8-[[4'-[(4-hydroxyphenyl)azo][1,1'-biphenyl]-4-yl]azo]naphthalene-1,3-disulphonic acid

EC / List no.: 204-184-5

CAS no.: 117-33-9

Mol. Formula: C28H20N4O8S2

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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
Previous Legislations
  • Substances listed in the EINECS, ELINCS, or NLP inventories.
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Substance names and other identifiers

Regulatory process names
1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-((4'-((4-hydroxyphenyl)azo)(1,1'-biphenyl)-4-yl)azo)-
Other
1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-(2-(4'-(2-(4-hydroxyphenyl)diazenyl)(1,1'-biphenyl)-4-yl)diazenyl)-
Other
7-Hydroxy-8-((4'-((4-hydroxyphenyl)azo)(1,1'-biphenyl)-4-yl)azo)naphthalene-1,3-disulphonic acid
Other
7-hydroxy-8-[[4'-[(4-hydroxyphenyl)azo][1,1'-biphenyl]-4-yl]azo]naphthalene-1,3-disulphonic acid
EC Inventory, Pre-Registration process
7-hydroxy-8-[[][[]4'-[[](4-hydroxyphenyl)azo][[]1,1'-biphenyl]-4-yl]azo]naphthalene-1,3-disulphonic acid
Other
IUPAC names
(8Z)-7-oxo-8-[[4-[4-[2-(4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]phenyl]phenyl]hydrazinylidene]naphthalene-1,3-disulfonic acid
Other
7-hydroxy-8-[(E)-2-{4'-[(E)-2-(4-hydroxyphenyl)diazen-1-yl]-[1,1'-biphenyl]-4-yl}diazen-1-yl]naphthalene-1,3-disulfonic acid
Other
Other identifiers
117-33-9
EC Inventory, Pre-Registration process, Other
CAS number

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