Trimethoxysilylpropanethiol
巯丙基三甲氧基硅烷
Also known as: (3-Mercaptopropyl)trimethoxysilane, 3-Mercaptopropyltrimethoxysilane, γ-Mercaptopropyltrimethoxysilane, 3-(Trimethoxysilyl)-1-propanethiol, 3-(Trimethoxysilyl)propanethiol, 1-Propanethiol, 3-(trimethoxysilyl)-, A-189, KBM-803, KBE-803, GF-70, Z-6062, SH-6062, Pros-196, M8500, CM8500
Trimethoxysilylpropanethiol (CAS 4420-74-0) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H16O3SSi and a molecular weight of 196.340 g/mol. It is also known as (3-Mercaptopropyl)trimethoxysilane, 3-Mercaptopropyltrimethoxysilane and γ-Mercaptopropyltrimethoxysilane. Key properties include a melting point of <-50ºC, a boiling point of 198.0±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 48.9±0.0 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4420-74-0
- Jingsj CID
- J-18767-9
- Molecular Formula
- C6H16O3SSi
- Chinese Name
- 巯丙基三甲氧基硅烷
- Molecular Weight
- 196.340 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | <-50ºC |
|---|---|
| Boiling Point | 198.0±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 48.9±0.0 °C |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of Trimethoxysilylpropanethiol?
The CAS number of Trimethoxysilylpropanethiol is 4420-74-0.
What are the molecular formula and molecular weight of Trimethoxysilylpropanethiol?
Trimethoxysilylpropanethiol has molecular formula C6H16O3SSi and molecular weight 196.340 g/mol.
Is Trimethoxysilylpropanethiol hazardous?
Trimethoxysilylpropanethiol has GHS signal word Warning.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Trimethoxysilylpropanethiol (CAS 4420-74-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18767-9 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.