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CAS 62637-93-8 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

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InventoryRef 5985715/10/2010

TRIMETHYLAMINE OXIDE

Methanamine, N,N-Dimethyl-, N-Oxide, Dihydrate

TRIMETHYLAMINE OXIDE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 62637-93-8

CAS 62637-93-8PubChem CID 198430

Trimethylamine oxide dihydrate

IUPAC name: N,N-dimethylmethanamine oxide;dihydrate

Molecular formula: C3H13NO3
Molecular weight: 111.14 g/mol
Exact mass: 111.08954328 Da
Topological polar surface area: 20.1 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 3
Covalent units: 3
Defined stereocentres: 0

Also known as

Trimethylamine oxide, dihydrateN,N-Dimethylmethanamine oxide, dihydrateC73WZ0186WRefChem:1100467Trimethylamine-N-oxide dihydrateAmine N-oxide dihydrateMethanamine, N,N-dimethyl-, N-oxide, dihydrateN,N-Dimethylmethanamine N-Oxide Dihydrate;

15 more reported names

Trimethylammoniumoxid hydrat [Czech]Trimethylammoniumoxid hydratN,N-dimethylmethanamine oxide dihydrateUNII-C73WZ0186WMethanamine oxide, N,N-dimethyl, dihydratetrimethylamineoxidedihydrateC3H13NO3s6042EBC-616148BS-17309DB-054228T5247TRIMETHYLAMINE N-OXIDE DIHYDRATE [MI]N,N-Dimethylmethanamine N-oxide--water (1/2)J-028844

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External database identifiers

EPA DTXSID:DTXSID00211694

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

Inventory details for TRIMETHYLAMINE OXIDE

INCI name

TRIMETHYLAMINE OXIDE

Description

Methanamine, N,N-Dimethyl-, N-Oxide, Dihydrate

Record provenance

Inventory reference: 59857
Imported identity: TRIMETHYLAMINE OXIDE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for TRIMETHYLAMINE OXIDE

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Key data

CAS

62637-93-8

214-675-6

Restriction

—

Function

FRAGRANCE: Imparting an odour or taste. Creating a perceivable pleasant smell and/or masking a bad smell.
HUMECTANT: Retaining and/or preserving the moisture in a product during use.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#29266 · TRIMETHYLAMINE OXIDE

Ingredients with overlapping formulation functions

TRIETHYLENE GLYCOLFRAGRANCE, PERFUMING, VISCOSITY CONTROLLING

TRIETHYLHEXANOINFRAGRANCE, HAIR CONDITIONING, PERFUMING, SKIN CONDITIONING

TRIFOLIUM PRATENSE FLOWER EXTRACTASTRINGENT, FRAGRANCE

TRIGONELLA FOENUM-GRAECUM FRUIT EXTRACTFRAGRANCE, SKIN CONDITIONING

TRIMETHYLBENZENEPROPANOLFRAGRANCE, PERFUMING

TRIMETHYLHEXANOLFRAGRANCE, SOLVENT

TRISODIUM GLYCYRRHIZATEFRAGRANCE, SKIN CONDITIONING

TRITELEIA IXIOIDES FLOWER EXTRACTFRAGRANCE

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

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal

How TRIMETHYLAMINE OXIDE appears in the CosIng inventory

The CosIng inventory lists TRIMETHYLAMINE OXIDE 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.

TRIMETHYLAMINE OXIDE is also tagged with 2 cosmetic functions 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

TRIMETHYLAMINE OXIDE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, TRIMETHYLAMINE OXIDE carries the following function designation(s):

CAS 62637-93-8 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

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Source note for TRIMETHYLAMINE OXIDE

This page reproduces the CosIng inventory entry for TRIMETHYLAMINE OXIDE 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 TRIMETHYLAMINE OXIDE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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