Phenylsilane

CAS NO.：694-53-1
Empirical Formula: C6H8Si
Molecular Weight: 108.21
MDL number: MFCD00013478
EINECS: 211-772-5
SAFETY DATA SHEET (SDS)
Update Date: 2026-04-24 14:58:14

What is Phenylsilane?

Chemical properties

clear colorless liquid

The Uses of Phenylsilane

phenylsilane is used as a pharmaceutical intermediate.

The Uses of Phenylsilane

Phenylsilane (PhSiH₃) may be used as a reducing agent for the partial reduction of phosphine oxide groups in poly(4,4′-diphenylphenylphosphine oxide) (PAPO) to phosphine. It can also undergo photopolymerization with methyl methacrylate(MMA) to form poly(MMA) containing SiH groups. PhSiH₃ may be used as a silicon source to synthesize crystalline Si nanowires via Au-nanocrystal-seeded supercritical fluid-liquid-solid (SFLS) synthesis.

What are the applications of Application

Employed in the reduction of esters to ethers. Reduces α,β-unsaturated ketones to saturated ketones in the presence of tri-n-butyltin hydride. Reduces tin amides to tin hydrides. Used in the tin-catalyzed reduction of nitroalkanes to alkanes. Reduces α-halo ketones in presence of Mo(0).

Definition

ChEBI: Phenylsilane is an organosilicon compound that is benzene in which a hydrogen is replaced by a silyl group. It has a role as a reducing agent. It is an organosilicon compound and a member of benzenes.

Properties of Phenylsilane

Melting point:	-64 to -68°C
Boiling point:	120 °C (lit.)
Density	0.877 g/mL at 25 °C (lit.)
refractive index	n20/D 1.510(lit.)
Flash point:	45 °F
storage temp.	Flammables area
form	clear liquid
color	Colorless to Almost colorless
Specific Gravity	0.868
Water Solubility	Contact with water releases a flammable alcohol. Soluble in water (Contact with water releases flammable gases), and most common organic solvents.
Sensitive	Air & Moisture Sensitive
Hydrolytic Sensitivity	7: reacts slowly with moisture/water
BRN	2935169
CAS DataBase Reference	694-53-1(CAS DataBase Reference)
EPA Substance Registry System	Silane, phenyl- (694-53-1)

Safety information for Phenylsilane

Signal word	Danger
Pictogram(s)	Flame Flammables GHS02 Exclamation Mark Irritant GHS07
GHS Hazard Statements	H225:Flammable liquids H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.