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C.I. Acid Yellow

Primary Chemical Name :

Primary Chemical Name is the standard name assigned to a chemical substance.

C.I. Acid Yellow
CAS Registry Number:

Chemical Abstracts Service Registry Number is a unique identifier for a chemical and its synonyms. CAS numbers identify the chemical, but not its concentration or specific mixture.  CAS Registry Numbers are assigned by the Chemical Abstracts Service, a division of the American Chemical Society. For more information: www.cas.org

We have assigned ID numbers (with 6 leading zeros or nines, e.g., 000000-xx-x or 999999-xx-x) for blends and chemicals that do not have CAS numbers.

EC Number:

The EC Number, formerly known as the EINECS number is a unique 7-digit number (format: xxx-xxx-x) assigned to chemicals registered with the European Chemicals Agency (ECHA).


Synonyms are alternative names that represent the same chemical substance.

Ext. D&C Yellow No. 1, Metanil yellow, 11363 Yellow; 4-(3-Sulfobenzeneazo)diphenylamine, sodium salt; 4-m-Sulfophenylazo-diphenylamine, monosodium salt; Acid Golden G; Acid Golden Yellow G; Acid Leather Yellow PRW; Acid Leather Yellow R; Acid Metanil Yellow; Acid Yellow 36; Acidic Metanil Yellow; Aizen Metanil Yellow; Amacid Yellow M; Basacid Yellow 230; Basacid Yellow 232; Benzenesulfonic acid, m-((p-anilinophenyl)azo)-, sodium salt; Brasilan Metanil Yellow; Bucacid Metanil Yellow; C.I. 13065; C.I. Acid Yellow 36 monosodium salt; C.I. Acid Yellow 36, monosodium salt; Calcocid Yellow MXXX; CI 13065; Diacid Metanil Yellow; Eniacid Metanil Yellow GN; Ext D and C Yellow No. 1; Ext D&C Yellow 1; Fenazo Yellow M; Hidacid Metanil Yellow; Hispacid Yellow MG; Japan Yellow 406; Java Metanil Yellow G; Kiton Orange MNO; Kiton Yellow MS; Metanil Yellow 1955; Metanil Yellow C; Metanil Yellow E; Metanil Yellow Extra; Metanil Yellow F

SVHC is a substance (identified by the European Chemicals Agency) that may have serious and often irreversible effects on human health and the environment. SVHC are defined in Article 57 of Regulation (EC) No 1907/2006 (“the REACH Regulation”) and include substances which are:
1.  Carcinogenic, Mutagenic or toxic to Reproduction (CMR), meeting the criteria for classification in category 1 or 2 in accordance with Directive 67/548/EEC or in category 1a or 1b in accordance with EC No 1272/2008This directive was recently replaced by the new EU regulation (EC) No 1272/2008.
2.  Persistent, Bioaccumulative and Toxic (PBT) or very Persistent and very Bioaccumulative (vPvB) according to the criteria in Annex XIII of the REACH Regulation, or
3.  Identified, on a case-by-case basis, from scientific evidence as causing probable serious effects to human health or the environment of an equivalent level of concern as those above (e.g. endocrine disrupters).


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