硅氧烷

Description

1,3-Diethenyl-1,1,3,3-tetramethyldisiloxane · CAS 2627-95-4 · C8H18OSi2. UNII SJ4D71ZQF4.

Identification

CAS Registry Number	2627-95-4
PubChem CID	75819
Molecular formula	C8H18OSi2
IUPAC name	ethenyl-[ethenyl(dimethyl)silyl]oxy-dimethylsilane
UNII (FDA)	SJ4D71ZQF4

Computed Descriptors

Molecular Weight	186.40
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	1
Rotatable Bond Count	4
Exact Mass	186.08961826
Monoisotopic Mass	186.08961826
Topological Polar Surface Area	9.2
Heavy Atom Count	11
Formal Charge	0
Complexity	143

Physical description & handling notes

• Liquid
• Colorless liquid; [Alfa Aesar MSDS]

Regulatory Status

GHS notification summary	0.4% (1 / 263)

GHS Hazard Classification

GHS notification summary	0.4% (1 / 263)
Reported hazard statements	H225 (94.3%), H315 (19.8%), H319 (19.8%), H335 (18.6%), H361 (22.4%)

Documented Uses

• 2023: 1,000,000 - <2,500,000 lb
• 2022: 1,000,000 - <2,500,000 lb
• 2021: 2,500,000 - <4,000,000 lb
• 2020: 1,000,000 - <2,500,000 lb
• All Other Chemical Product and Preparation Manufacturing
• All Other Basic Organic Chemical Manufacturing

Synonyms

2627-95-4; 1,3-Divinyltetramethyldisiloxane; 1,1,3,3-Tetramethyl-1,3-divinyldisiloxane; Disiloxane, 1,3-diethenyl-1,1,3,3-tetramethyl-; Bisvinyltetramethyldisiloxane; 1,1'-Divinyltetramethyldisiloxane; sym-Tetramethyldivinyldisiloxane; 1,3-Diethenyl-1,1,3,3-tetramethyl disiloxane; SJ4D71ZQF4; 1,3-Divinyl-1,1,3,3-tetramethyl disiloxane; BIS(ETHENYLDIMETHYLSILYL) ETHER; RefChem:1052948; 220-099-6; Divinyltetramethyldisiloxane; ethenyl-[ethenyl(dimethyl)silyl]oxy-dimethylsilane; UNII-SJ4D71ZQF4

Frequently Asked Questions

What are the CAS number and molecular formula of 1,3-Diethenyl-1,1,3,3-tetramethyldisiloxane?

CAS 2627-95-4; molecular formula C8H18OSi2; molecular weight — g/mol.

What other names is 1,3-Diethenyl-1,1,3,3-tetramethyldisiloxane known by?

2627-95-4, 1,3-Divinyltetramethyldisiloxane, 1,1,3,3-Tetramethyl-1,3-divinyldisiloxane, Disiloxane, 1,3-diethenyl-1,1,3,3-tetramethyl-, Bisvinyltetramethyldisiloxane, 1,1'-Divinyltetramethyldisiloxane.

Is 1,3-Diethenyl-1,1,3,3-tetramethyldisiloxane classified as hazardous?

0.4% of GHS notifications report no hazard classification (1 of 263).

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.