Methanediol; methylene glycol
Methanediol; methylene glycol is listed in Annex II as a prohibited substance for cosmetic products placed on the EU market.
Chemical identity and properties
Methanediol
Methanediol is the simplest member of the class of methanediols that is methane in which two of the hydrogens have been substituted by hydroxy groups. It is a member of methanediols, an aldehyde hydrate and a one-carbon compound. — ChEBI
- IUPAC name
- methanediol
- Molecular formula
- CH4O2
- Molecular weight
- 48.041 g/mol
- Exact mass
- 48.021129366 Da
- XLogP3
- -1.0
- Topological polar surface area
- 40.5 Ų
- Hydrogen-bond donors
- 2
- Hydrogen-bond acceptors
- 2
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
8 more reported names
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.
Record details
Chemical name
Methanediol; methylene glycol
Chemical / IUPAC name
Methanediol; methylene glycol
Regulatory information
Identified ingredients
Key data
Inventory links for Methanediol; methylene glycol
Related records for Methanediol; methylene glycol
Direct matches are limited for this record, so nearby entries from Annex II are shown as well.
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What Annex II means for Methanediol; methylene glycol
Methanediol; methylene glycol 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.
This record is linked to 1 CosIng inventory ingredient for name and identifier cross-reference. 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).
Frequently asked questions
Source note for Annex II record Methanediol; methylene glycol
This page summarizes one Annex II record for Methanediol; methylene glycol 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 Methanediol; methylene glycol, but confirm any final regulatory decision against the current official annex wording and source files.
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