Official EU label nameGlossary entry 16582

METHYL TRYPTOPHANATE HCl

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.

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Resolved identifiers

Resolved substance identity

CAS:7524-52-9

EC:231-385-5

Ingredient index records:

METHYL TRYPTOPHANATE HCL

Cosmetic functions: HAIR CONDITIONING

L-Tryptophan, Methyl Ester, Monohydrochloride

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1 matched or reported name

METHYL TRYPTOPHANATE HCL

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name METHYL TRYPTOPHANATE HCl.

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 7524-52-9

CAS 7524-52-9PubChem CID 2734891

Methyl tryptophanate hydrochloride

IUPAC name: methyl (2S)-2-amino-3-(1H-indol-3-yl)propanoate;hydrochloride

Molecular formula: C12H15ClN2O2
Molecular weight: 254.71 g/mol
Exact mass: 254.0822054 Da
Topological polar surface area: 68.1 Å²
Hydrogen-bond donors: 3
Hydrogen-bond acceptors: 3
Covalent units: 2
Defined stereocentres: 1

Also known as

L-Tryptophan methyl ester hydrochlorideMethyl L-tryptophanate HClEINECS 231-385-5UNII-AU62O6861LAU62O6861LMETHYL TRYPTOPHANATE HCL(S)-Tryptophan Methyl Ester MonohydrochlorideL-TRYPTOPHAN, METHYL ESTER, HYDROCHLORIDE (1:1)

16 more reported names

RefChem:158052L-Tryptophan, methyl ester, monohydrochlorideMETHYL TRYPTOPHANATE HCL [INCI]L-(-)-Tryptophan Methyl Ester HydrochlorideTRYPTOPHAN METHYL ESTER MONOHYDROCHLORIDE(S)-TRYPTOPHAN METHYL ESTER HYDROCHLORIDETRYPTOPHAN, METHYL ESTER, MONOHYDROCHLORIDE, L-231-385-5H-Trp-OMe.HClMethyl L-Tryptophanate HydrochlorideL-TRYPTOPHAN METHYL ESTER HCl(S)-methyl 2-amino-3-(1H-indol-3-yl)propanoate hydrochloridemethyl (2S)-2-amino-3-(1H-indol-3-yl)propanoate hydrochlorideMethyl L-tryptophanate monohydrochlorideAC-8667(L)-tryptophan methyl ester hydrochloride

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External database identifiers

ChEMBL:CHEMBL1222005
EPA DTXSID:DTXSID10226219

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 assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal US 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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