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CAS 4420-74-0

CAS 4420-74-0 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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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 Ų
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
Open full PubChem recordPubChem annotations3D structure image
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.

Records for CAS 4420-74-0

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No records found for this CAS number.

How CAS 4420-74-0 is used on this site

CAS 4420-74-0 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 4420-74-0 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.