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Official EU label nameGlossary entry 1842

AMMONIUM XANTHOMMATIN

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

0 markets with evidence
Markets checked
13
Markets with evidence
0
Evidence gaps
13
Resolved identifiers
1

Resolved substance identity

CAS:521-58-4
Ingredient index records:
AMMONIUM XANTHOMMATIN
Cosmetic functions: ANTIOXIDANT

Ammonium Xanthommatin is the organic compound that conforms to the formula:

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1 matched or reported name
AMMONIUM XANTHOMMATIN

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name AMMONIUM XANTHOMMATIN.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 521-58-4
CAS 521-58-4PubChem CID 98312

alpha-Amino-3-carboxy-1-hydroxy-gamma,5-dioxo-5H-pyrido(3,2-a)phenoxazine-11-butanoic acid

Xanthommatin is an ommochrome that consists of a pyrido[3,2-a]phenoxazine ring system bearing hydroxy, carboxy, oxo and 3-amino-3-carboxypropanoyl substituents at positions 1, 3, 5 and 11 respectively. The parent of the class of xanthommatins. It is a conjugate acid of a xanthommatin(1-). — ChEBI

IUPAC name
11-(3-amino-3-carboxypropanoyl)-1,5-dioxo-4H-pyrido[3,2-a]phenoxazine-3-carboxylic acid
Molecular formula
C20H13N3O8
Molecular weight
423.3 g/mol
Exact mass
423.07026438 Da
XLogP3
-2.7
Topological polar surface area
185.0 Ų
Hydrogen-bond donors
4
Hydrogen-bond acceptors
11
Covalent units
1
Defined stereocentres
0

Also known as

XanthommatinXanthomattin3BMW3J9GSZNSC-10084911-(3-amino-3-carboxypropanoyl)-1-hydroxy-5-oxo-5H-pyrido[3,2-a]phenoxazine-3-carboxylic acidCHEBI:16550alpha-Amino-3-carboxy-1-hydroxy-gamma,5-dioxo-5H-pyrido[3,2-a]phenoxazine-11-butanoic acid11-(3-amino-3-carboxypropanoyl)-1-hydroxy-5-oxo-5H-pyrido(3,2-a)phenoxazine-3-carboxylic acid
6 more reported names
RefChem:915476NSC 100849I+/--Amino-3-carboxy-1-hydroxy-I(3),5-dioxo-5H-pyrido[3,2-a]phenoxazine-11-butanoic acid4H-Pyrido[3,2-a]phenoxazine-11-butanoic acid, alpha-amino-3-carboxy-1,5-dihydro-gamma,1,5-trioxo-5H-Pyrido(3,2-a)phenoxazine-11-butanoic acid, alpha-amino-3-carboxy-1-hydroxy-gamma,5-dioxo- (VAN)5H-Pyrido[3,2-a]phenoxazine-11-butanoic acid, alpha-amino-3-carboxy-1-hydroxy-gamma,5-dioxo-
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Additional authoritative substance research

Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight

Cosmetic Ingredient Review safety assessmentsFDA Global Substance Registration SystemILO/WHO International Chemical Safety CardsJapan NITE-CHRIPNIOSH Pocket Guide to Chemical HazardsOECD eChemPortalUS EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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