Poly(methylhydrosiloxane)

聚甲基氢硅氧烷

Also known as: Methylhydrosiloxane homopolymer, trimethylsilyl terminated, PMHS, Poly(oxy(methylsilylene)), Silicone oil, methyl hydrogen

Poly(methylhydrosiloxane) (CAS 63148-57-2) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H30O2Si3 and a molecular weight of 254.59000 g/mol. It is also known as Methylhydrosiloxane homopolymer, trimethylsilyl terminated, PMHS and Poly(oxy(methylsilylene)). Key properties include a melting point of <-60°C, a boiling point of 205ºC, a density of 1.006 and a flash point of 82 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 28, 2026.

CAS No.
63148-57-2
Jingsj CID
J-29282-3
Molecular Formula
C9H30O2Si3
Chinese Name
聚甲基氢硅氧烷
Molecular Weight
254.59000 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/28/2026

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Physicochemical Properties

Melting Point<-60°C
Boiling Point205ºC
Density1.006
Flash Point82 °F

Frequently Asked Questions

What is the CAS number of Poly(methylhydrosiloxane)?

The CAS number of Poly(methylhydrosiloxane) is 63148-57-2.

What are the molecular formula and molecular weight of Poly(methylhydrosiloxane)?

Poly(methylhydrosiloxane) has molecular formula C9H30O2Si3 and molecular weight 254.59000 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Poly(methylhydrosiloxane) (CAS 63148-57-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29282-3 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.