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CAS 2 records

CAS 4368-56-3

CAS 4368-56-3 matches 2 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 4368-56-3
CAS 4368-56-3PubChem CID 23678881

Acid Blue 62

IUPAC name
sodium 1-amino-4-(cyclohexylamino)-9,10-dioxoanthracene-2-sulfonate
Molecular formula
C20H19N2NaO5S
Molecular weight
422.4 g/mol
Exact mass
422.09123717 Da
Topological polar surface area
138.0 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
7
Covalent units
2
Defined stereocentres
0

Also known as

C.I. Acid Blue 62C.I. 62045DG356U29IU2-Anthracenesulfonic acid, 1-amino-4-(cyclohexylamino)-9,10-dihydro-9,10-dioxo-, monosodium saltRefChem:109235224-460-9sodium;1-amino-4-(cyclohexylamino)-9,10-dioxoanthracene-2-sulfonateKayacyl Sky Blue R
16 more reported names
sodium,1-amino-4-(cyclohexylamino)-9,10-dioxoanthracene-2-sulfonateTelon Blue RRLEriosin Blue RFFErionyl Blue E-RFFAlizarine Sky Blue RFenazo Light Blue RAAlizarine Brilliant Sky Blue RAlizarine Supra Blue REriosin Fast Blue RFFAlizarine Supra Sky RASol. Sulfur Blue 10Polan Navy Blue E 2RAlizarine Fast Blue RFEAcid Alizarine Pure Blue RKayaku Alizarine Sky Blue RAlizarine Direct Pure Blue R
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

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 4368-56-3

2 total
Annex
III
Entry
195

ACID BLUE 62

Sodium 1-amino-4-(cyclohexylamino)-9,10-dihydro-9,10-dioxoanthracene-2-sulphonate; CI 62045 (see note 17)

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

EC
224-460-9
Max concentration
Annex
IV
Entry
94

CI 62045

Sodium 1-amino-4-(cyclohexylamino)-9,10-dihydro-9,10-dioxoanthracene-2-sulphonate
EC
224-460-9
Max concentration

How CAS 4368-56-3 is used on this site

CAS 4368-56-3 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 4368-56-3 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 4368-56-3 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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