Official EU label nameGlossary entry 16262

MERCAPTOPROPYLTRIMETHOXYSILANE

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.

0 markets with evidence

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Markets with evidence

Evidence gaps

Resolved identifiers

Resolved substance identity

CAS:4420-74-0

EC:224-588-5

Ingredient index records:

MERCAPTOPROPYLTRIMETHOXYSILANE

Cosmetic functions: NAIL CONDITIONING

Mercaptopropyltrimethoxysilane is the organic compound

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1 matched or reported name

MERCAPTOPROPYLTRIMETHOXYSILANE

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name MERCAPTOPROPYLTRIMETHOXYSILANE.

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 4420-74-0

CAS 4420-74-0PubChem CID 20473

(3-Mercaptopropyl)trimethoxysilane

IUPAC name: 3-trimethoxysilylpropane-1-thiol

Molecular formula: C6H16O3SSi
Molecular weight: 196.34 g/mol
Exact mass: 196.05894208 Da
Topological polar surface area: 28.7 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 4
Covalent units: 1
Defined stereocentres: 0

Also known as

3-Mercaptopropyltrimethoxysilane3-(Trimethoxysilyl)propanethiol1-Propanethiol, 3-(trimethoxysilyl)-Silquest A 1893-(Trimethoxysilyl)-1-PropanethiolProsil 196Silane A 189(3-Thiopropyl)trimethoxysilane

16 more reported names

NUCA 1893-(Sulfanylpropyl)trimethoxysilaneM 8500 (coupling agent)3-(Trimethoxysilyl)propyl mercaptanA 189 (silicone)KBE 803KBM 803GF 70TSL 8380(gamma-mercaptopropyl)trimethoxysilaneTSL8380EAZ 6129SH 6062Z 60628CB1M08OIWM 8500

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External database identifiers

ChEMBL:CHEMBL3185147
EPA DTXSID:DTXSID2044428
PubMed:22970739
PubMed:22967539
PubMed:22960353
PubMed:22853320
PubMed:22736974
PubMed:22679370
PubMed:22646820
PubMed:22629918
PubMed:22619503
PubMed:22574015
PubMed:22523953
PubMed:22444573

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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