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Key Documents

Safety Information

557641

Sigma-Aldrich

Pentamethyldisilane

97%

Synonym(s):

1,1,1,2,2-Pentamethyldisilane

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About This Item

Linear Formula:
(CH3)3SiSi(CH3)2H
CAS Number:
Molecular Weight:
132.35
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.23

Assay

97%

form

liquid

refractive index

n20/D 1.4240 (lit.)

bp

98-99 °C (lit.)

density

0.722 g/mL at 25 °C (lit.)

SMILES string

[H][Si](C)(C)[Si](C)(C)C

InChI

1S/C5H16Si2/c1-6(2)7(3,4)5/h6H,1-5H3

InChI key

FHQRQPAFALORSL-UHFFFAOYSA-N

Pictograms

Flame

Signal Word

Danger

Hazard Statements

Hazard Classifications

Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

14.0 °F - closed cup

Flash Point(C)

-10 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 1 petroleums
Hazardous rank II
Water insoluble liquid

JAN Code

557641-VAR:
557641-BULK:
557641-1ML:
557641-5ML:


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