1-(Chloromethyl)-1,1,3,3,3-pentamethyldisiloxane

Q: What are the molecular formula and molecular weight of 1-(Chloromethyl)-1,1,3,3,3-pentamethyldisiloxane?

C6H17ClOSi2, molecular weight 196.823 g/mol

氯甲基五甲基二硅氧烷

Also known as: Chloromethylpentamethyldisiloxane, Pentamethyl(chloromethyl)disiloxane, NSC 96799, 1-Chloromethyl-1,1,3,3,3-pentamethyldisiloxane, Chloromethyl Pentamethyl Disiloxane, ClCH2SiMe2OSiMe3, 1-Chlor-2.2.4.4-tetramethyl-3-oxa-2.4-disila-pentan, chlormethyl-pentamethyl-disiloxan

CAS No.: 17201-83-1
Jingsj CID: J-1316548-8
Molecular Formula: C₆H₁₇ClOSi₂
Chinese Name: 氯甲基五甲基二硅氧烷
Molecular Weight: 196.823 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	<0°C
Boiling Point	147.3±13.0 °C at 760 mmHg
Density	0.9±0.1 g/cm3
Flash Point	37.6±12.0 °C

Frequently Asked Questions

What is the CAS number of 1-(Chloromethyl)-1,1,3,3,3-pentamethyldisiloxane?

17201-83-1

What are the molecular formula and molecular weight of 1-(Chloromethyl)-1,1,3,3,3-pentamethyldisiloxane?

C6H17ClOSi2, molecular weight 196.823 g/mol

Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026