Colchicine, its salts and derivatives
Colchicine, its salts and derivatives is listed in Annex II as a prohibited substance for cosmetic products placed on the EU market.
Chemical identity and properties

Colchicine
(S)-colchicine is a colchicine that has (S)-configuration. It is a secondary metabolite, has anti-inflammatory properties and is used to treat gout, crystal-induced joint inflammation, familial Mediterranean fever, and many other conditions. It has a role as a mutagen, a gout suppressant and an anti-inflammatory agent. It is an alkaloid and a colchicine. It is an enantiomer of a (R)-colchicine. — ChEBI
- IUPAC name
- N-[(7S)-1,2,3,10-tetramethoxy-9-oxo-6,7-dihydro-5H-benzo[a]heptalen-7-yl]acetamide
- Molecular formula
- C22H25NO6
- Molecular weight
- 399.4 g/mol
- Exact mass
- 399.16818752 Da
- XLogP3
- 1.0
- Topological polar surface area
- 83.1 Ų
- Hydrogen-bond donors
- 1
- Hydrogen-bond acceptors
- 6
- Covalent units
- 1
- Defined stereocentres
- 1
Also known as
16 more reported names
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.
Record details
Chemical name
Colchicine, its salts and derivatives
Chemical / IUPAC name
Acetamide, N-((7S)-5,6,7,9-tetrahydro-1,2,3,10-tetramethoxy-9-oxobenzo(a)heptalen-7-yl)-
Regulatory information
Other directives
(EC) 2009/790
CMR
| Category | Carcinogenic | Mutagenic | Reprotoxic |
|---|---|---|---|
| Cat. 1B | — | ✓ | — |
Key data
Related records for Colchicine, its salts and derivatives
Direct matches are limited for this record, so nearby entries from Annex II are shown as well.
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Colchicum autumnale L. and its galenical preparations
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What Annex II means for Colchicine, its salts and derivatives
Colchicine, its salts and derivatives is listed as a prohibited substance under Annex II of EU Cosmetics Regulation 1223/2009 and must not be intentionally added. Article 17 separately addresses unintended small quantities that are technically unavoidable under good manufacturing practice and compatible with the Article 3 safety requirement.
Formulators must screen their ingredients and raw materials to ensure none contain this substance. Suppliers should provide documentation confirming absence when requested.
The page also surfaces 12 related annex records with overlapping identifiers, annex logic or naming patterns.
Compliance checklist
- Verify this substance is absent from all raw materials and finished formulations.
- Request absence confirmation or CoA from raw material suppliers.
- Document the screening result in the Product Information File (PIF).
- This substance has CMR classification. Review the CMR table above and verify current Annex II/III status before use.
Frequently asked questions
Source note for Annex II record Colchicine, its salts and derivatives
This page summarizes one Annex II record for Colchicine, its salts and derivatives from public European Commission cosmetic materials and adds linked inventory or identifier matches when available.
Use this record page to review Annex II conditions for Colchicine, its salts and derivatives, but confirm any final regulatory decision against the current official annex wording and source files.
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