XANTHOPTERIN
Xanthopterin is the organic compound that conforms to the formula:
XANTHOPTERIN is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.
Regulatory evidence by market
No rule for this ingredient has been imported for any of the 13 markets tracked here.
That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.
Exact external identity check
matchedOne PubChem compound was retained because the exact CosIng name appears among its reported synonyms.
- PubChem title
- Xanthopterin
- IUPAC name
- 2-amino-3,5-dihydropteridine-4,6-dione
- Molecular formula
- C6H5N5O2
- Molecular weight
- 179.14 g/mol
- InChIKey
- VURKRJGMSKJIQX-UHFFFAOYSA-N
Exact CosIng INCI name equals a PubChem synonym · Checked 2026-08-31
Inventory details for XANTHOPTERIN
INCI name
XANTHOPTERIN
Description
Xanthopterin is the organic compound that conforms to the formula:
Record provenance
- Inventory reference
- 98622
- Imported identity
- XANTHOPTERIN
- Source update
- 08/10/2020
Annex records for XANTHOPTERIN
Key data
The CosIng inventory records no CAS number for this ingredient. That is the absence of an identifier in the source, not a finding about the substance.
- COLORANT
- Exclusively or mainly intended to colour the cosmetic product, the body as a whole or certain parts thereof, by absorption or reflection of visible light. All authorised colorants are substances in the positive list of Annex IV to the Cosmetics Regulation 1223/2009.
Official EU ingredient-name evidence
The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.
Related inventory evidence
Ingredients with overlapping formulation functions
Additional official and scientific sources
11 external databases to check this identity in
Each link searches that source for this identity. What each source is, and its legal weight
How XANTHOPTERIN appears in the CosIng inventory
The CosIng inventory lists XANTHOPTERIN as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.
XANTHOPTERIN is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.
Frequently asked questions
Source note for XANTHOPTERIN
This page reproduces the CosIng inventory entry for XANTHOPTERIN from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.
Use this inventory page to research XANTHOPTERIN and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.
Tools & next steps
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