English Safety Data Sheet Database 中文版 MSDS

hexamethyldisilane

CAS No. 1450-14-2 | PubChem CID 74057
Section 1. Identification
Chemical Namehexamethyldisilane CAS No.1450-14-2
Synonyms Chinese Name六甲基二硅烷
Molecular FormulaC6H18Si2 Molecular Weight146.3781
UN No.1993 Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word DANGER
Pictograms GHS02 · Flammable GHS07 · Irritant GHS08 · Health Hazard
Hazard Statements H225H317H319H334H335
Precautionary Statements P210P233P240P241P242P243P260P261P264+P265P271P272P280P284P302+P352P303+P361+P353P304+P340P305+P351+P338P319P321P333+P317P337+P317P342+P316P362+P364P370+P378P403P403+P233P403+P235P405P501

Section 2. Hazards Identification

H225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]

H317 (46.4%): May cause an allergic skin reaction [Warning Sensitization, Skin]

H319 (66.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

H334 (52.4%): May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]

H335 (66.7%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

P210, P233, P240, P241, P242, P243, P260, P261, P264+P265, P271, P272, P280, P284, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P333+P317, P337+P317, P342+P316, P362+P364, P370+P378, P403, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 84 reports by companies from 13 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

Section 9. Physical and Chemical Properties

Colorless liquid; [Alfa Aesar MSDS]

Schoenflies notation

Chemical bond

Chemical shift

Fusion temperature

Internuclear distance

Melting temperature

Molecular structure

Optical coefficient

Phase transition

Point group

Refractive index

Spin-spin coupling constant

Transition enthalpy

Viscosity

Metals -> Metalloid Compounds (Silicon)

Section 11. Toxicological Information

Skin Sensitizer - An agent that can induce an allergic reaction in the skin.

Source: PubChem CID 74057 (NIH/NLM, public domain). Retrieved from PubChem, a public-domain chemistry database maintained by the U.S. National Library of Medicine. Last updated: 2026-08-02 09:48:43.
Disclaimer: This information is compiled for reference only and does not replace the manufacturer's official Safety Data Sheet. Always consult the supplier's SDS before handling any chemical.