Substance Information

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New Data Availability System

A new Data Availability System is being developed by ECHA. To begin with this system will take over the responsibility of making REACH registration data available, once it is ready. We expect the first version to be publicly available by the end of 2023.

Since ECHA aims to devote our maximum effort to this new system, we can no longer maintain REACH registration data on the current Dissemination Platform. As such once the IUCLID format change begins on 19th May 2023 we will no longer update REACH registered substance factsheets. The factsheets will remain online, but will not be updated.

As a consequence, REACH registration data will likewise not be updated in Infocards, Brief Profiles, the Advanced search, or the Nanomaterials on the EU market portal. We will inform you of what you can expect in the new system, along with details of when and where to find it.

We appreciate your understanding in the meantime.

Substance Infocard

IC

Barium bis[4-[(2-hydroxy-1-naphthyl)azo]-2-methylbenzenesulphonate]

EC / List no.: 227-459-1

CAS no.: 5850-87-3

Mol. Formula: C34H26BaN4O8S2

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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.
Previous Legislations
  • Substances listed in the EINECS, ELINCS, or NLP inventories.
Cosmetic Products Regulation
  • Cosmetic Products Regulation, Annex IV - Allowed Colorants
    EU. Allowed Colorants: Annex IV, Regulation 1223/2009/EC on Cosmetic Products, as corrected by Corrigendum to Commission Regulation (EU) 2021/850, 17 June 2021

    This list contains coloring agents allowed for use in cosmetic products marketed in the European Union. The list indicates the approved fields for application, including whether or not the colorant is permitted for use in products applied near the eye or on mucous membranes, or in products intended to come in contact with the skin.

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Substance names and other identifiers

Regulatory process names
Barium bis(4-((2-hydroxy-1-naphthyl)azo)-2-methylbenzenesulphonate)
Other
Barium bis[4-[(2-hydroxy-1-naphthyl)azo]-2-methylbenzenesul-phonate]
Cosmetic Products Regulation, Annex IV - Allowed Colorants
Barium bis[4-[(2-hydroxy-1-naphthyl)azo]-2-methylbenzenesulphonate]
EC Inventory
Barium bis[4-[(2-hydroxy-1-naphthyl)azo]-2-methylbenzenesulphonate]
Other
barium bis[4-[(2-hydroxy-1-naphthyl)azo]-2-methylbenzenesulphonate]
Pre-Registration process
Benzenesulfonic acid, 4-((2-hydroxy-1-naphthalenyl)azo)-2-methyl-, barium salt (2:1)
Other
Benzenesulfonic acid, 4-(2-(2-hydroxy-1-naphthalenyl)diazenyl)-2-methyl-, barium salt (2:1)
Other
C.I. 15580
Other
C.I. Pigment Red 51
Other
Pigment Red 51
Other
IUPAC names
barium(2+) bis(4-[(E)-2-(2-hydroxynaphthalen-1-yl)diazen-1-yl]-2-methylbenzene-1-sulfonate)
Other
Other identifiers
5850-87-3
EC Inventory, Pre-Registration process, Cosmetic Products Regulation, Annex IV - Allowed Colorants, Other
CAS number