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CAS 2 records

CAS 23920-15-2

CAS 23920-15-2 matches 2 EU annex records across Annex II–VI of Regulation 1223/2009.

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Records for CAS 23920-15-2

2 total
Annex
III
Entry
196

HC BLUE NO. 11

1-[(2'-Methoxyethyl)amino]-2-nitro-4-[di-(2'-hydroxyethyl)amino]benzene (see note 17)

- Do not use with nitrosating systems - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers

EC
459-980-7
Max concentration
Annex
III
Entry
220

HC Blue No 11

1-[(2′-Methoxye thyl)amino]-2-nitro- 4-[di-(2′-hydroxye thyl)amino]ben zene

— Do not use with nitro sating agents — Maximum nitrosamine content: 50 μg /kg — Keep in nitrite-free containers

EC
459-980-7
Max concentration

How CAS 23920-15-2 is used on this site

CAS 23920-15-2 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 2 EU annex records share 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 23920-15-2 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 23920-15-2 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.

Use the INCI Checker to scan your full ingredient list against all EU annex entries. The checker matches by INCI name. For CAS-based matching, verify against raw material specification sheets and compare CAS numbers with the entries listed on this page.
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