五甲基二硅氧烷

Description

Pentamethyldisiloxane · CAS 1438-82-0 · C5H16OSi2. UNII NS00045193.

Identification

CAS Registry Number	1438-82-0
PubChem CID	74037
Molecular formula	C5H16OSi2
IUPAC name	dimethylsilyloxy(trimethyl)silane
UNII (FDA)	NS00045193

Computed Descriptors

Molecular Weight	148.35
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	1
Rotatable Bond Count	2
Exact Mass	148.07396820
Monoisotopic Mass	148.07396820
Topological Polar Surface Area	9.2
Heavy Atom Count	8
Formal Charge	0
Complexity	65.3

GHS Hazard Classification

Reported hazard statements	H225 (100%)

Documented Uses

• Disiloxane, 1,1,1,3,3-pentamethyl-: ACTIVE

Synonyms

RefChem:859847; DTXCID201023180; 215-873-5; 1438-82-0; Disiloxane, 1,1,1,3,3-pentamethyl-; DTXSID00883673; Pentamethyldisiloxane; dimethylsilyloxy(trimethyl)silane; 1,1,3,3,3-pentamethyldisiloxane; s12900; Disiloxane,1,1,1,3,3-pentamethyl-; C5H16OSi2; SCHEMBL33802; (trimethylsiloxy)dimethylsilane; Vinyl Pepentamethyl Disiloxane; Pentamethyldisiloxane, >=95.0%

Frequently Asked Questions

What are the CAS number and molecular formula of Pentamethyldisiloxane?

CAS 1438-82-0; molecular formula C5H16OSi2; molecular weight — g/mol.

What other names is Pentamethyldisiloxane known by?

RefChem:859847, DTXCID201023180, 215-873-5, 1438-82-0, Disiloxane, 1,1,1,3,3-pentamethyl-, DTXSID00883673.

Is Pentamethyldisiloxane classified as hazardous?

Hazard statements reported: H225.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.