Why does CAS 13477-70-8 appear in more than one EU cosmetic annex?

A substance identified by CAS 13477-70-8 may appear in multiple EU cosmetic regulation annexes when it is subject to different conditions in different contexts — for example, restricted under Annex III with specific conditions, while also appearing in Annex IV as an approved colorant under separate entry conditions. Each entry must be reviewed individually.

How do I check if my formula contains a substance with CAS 13477-70-8?

Use the INCI Checker on CosIng Checker with INCI names, CAS numbers or EC numbers. Paste CAS 13477-70-8 to screen it directly, then review every linked annex record and supplier document.

CAS 1 record

CAS 13477-70-8

Q: How do I use CAS 13477-70-8 for compliance screening?

Cross-reference CAS 13477-70-8 against your raw material specification sheets and CoA documents. When it appears in Annex II, verify absence. When it appears in Annex III, verify that concentration limits and product type conditions are met. All annex entries sharing this CAS number are listed on this page.

CAS 13477-70-8 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 13477-70-8

CAS 13477-70-8PubChem CID 3084152

Arsenic acid (H3aso4), nickel(2+) salt (2:3)

Nickel arsenate is a chemical compound of nickel and arsenic. Nickel is a chemical compound with the atomic number 28. It is found abundantly in nature in laterite ore minerals, such as limonite, garnierite, and pentlandite. Nickel has a biological role and is found in certain enzymes, including urease, hydrogenase, methylcoenzyme M reductase, and carbon monoxide dehydrogenase. Arsenic is a chemical element that has the symbol As and atomic number 33. It is a poisonous metalloid that has many allotropic forms: yellow (molecular non-metallic) and several black and grey forms (metalloids) are a few that are seen. Three metalloidal forms of arsenic with different crystal structures are found free in nature (the minerals arsenopyrite and the much rarer arsenolamprite and pararsenolamprite), but it is more commonly found as a compound with other elements. (T3, L40, L41) — Toxin and Toxin Target Database (T3DB)

IUPAC name: arsoric acid;nickel

Molecular formula: AsH3NiO4
Molecular weight: 200.637 g/mol
Exact mass: 199.86007 Da
Topological polar surface area: 77.8 Å²
Hydrogen-bond donors: 3
Hydrogen-bond acceptors: 4
Covalent units: 2
Defined stereocentres: 0

Also known as

Trinickel bis(arsenate)Nickel arsenatearsoric acid nickelRefChem:899938236-771-7EINECS 236-771-7NSC 309958ZIPTVBOPGBCBMU-UHFFFAOYSA-N

2 more reported names

NSC-309958Arsenic acid, nickel(2+) salt (2:3)

Open full PubChem record PubChem annotations 3D structure image

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 13477-70-8

1 total

Annex

Entry

1444

Trinickel bis(arsenate); nickel(II) arsenate

236-771-7

CMR

How CAS 13477-70-8 is used on this site

CAS 13477-70-8 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 13477-70-8 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.

Frequently asked questions

A substance identified by CAS 13477-70-8 may appear in multiple EU cosmetic regulation annexes when it is subject to different conditions in different contexts. For example, a substance might be restricted under Annex III with specific conditions, and the same CAS might also appear in Annex IV as an approved colorant under separate entry conditions. Each entry must be reviewed individually.

Cross-reference the CAS number against your raw material specification sheets and CoA documents. When a CAS appears in Annex II, verify absence. When it appears in Annex III, verify that concentration limits and product type conditions are met in your formulation. All annex entries sharing this CAS number are listed above.

A CAS number is assigned by the Chemical Abstracts Service (USA) and is globally recognised. An EC number is a European Commission identifier from inventories such as EINECS, ELINCS or the NLP list. Both identifiers may appear in EU cosmetic annex entries. Some substances have both, some have only one, and some older entries may have neither.

The INCI Checker accepts ingredient names, CAS numbers and EC numbers. Check this CAS number directly, then verify the result against supplier specification sheets and every linked annex condition.

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