Substance Information

Substance Infocard


2,[?]-Naphthalenedisulfonic acid, 4-[[][[]4-[[](4-amino-1-naphthalenyl)azo]-1-naphthalenyl]azo]-, disodium salt

EC / List no.: 616-837-5

CAS no.: 8004-59-9

Mol. Formula:

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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
  • Substances indicated, in 2009, as being intended to be registered by at least one company in the EEA.
  • REACH Annex XVII. Substances for which certain uses are Restricted under REACH at EU level.
CAD - Chemical Agents Directive
  • CAD - Chemical Agents Directive, Annex III - Prohibitions
    EU. Directive 98/24/EC, Annex III, Prohibitions, OJ (L 131) 11, 5 May 1998

    This list contains substances assigned a binding OEL by the EU. National OELs for these substances may not deviate from the limits in the directive. Annex III contains a list of prohibited substances and their concentration limit values in percent by weight.

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Substance names and other identifiers

Regulatory process names
2,?-Naphthalenedisulfonic acid, 4-[[4-[(4-amino-1-naphthalenyl)azo]-1-naphthalenyl]azo]-, disodium salt
Pre-Registration process
2,[?]-Naphthalenedisulfonic acid, 4-[[][[]4-[[](4-amino-1-naphthalenyl)azo]-1-naphthalenyl]azo]-, disodium salt
C.I. acid black 007
Other names
C.I. Acid Black 7
Pre-Registration process
Other identifiers
Pre-Registration process, Other
CAS number
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Group parents

This substance has been identified as member of the following groups of substances:

Name EC / List no. CAS no. Association
Benzidine and its salts - - Expert judgement

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