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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 69849Generated: October 26, 2026

Phenyltrimethylsilane

DK899 · DK393 · DKSI048 · DKFELEX0238 · Co-Formula CFS-321 · TRIMETHYLPHENYLSILANE · TriMethyl(phenyl)sila · PHENYLTRIMETHYLSILANE

https://huagongshe.com/en/chemical/69849

Phenyltrimethylsilane molecular structure

Identifiers & Physical Properties

CAS No.768-32-1
Molecular formulaC9H14Si
Average molar mass150.29 g/mol
Monoisotopic mass150.08647698 g/mol
SMILESC[Si](C)(C)c1ccccc1
InChIKeyKXFSUVJPEQYUGN-UHFFFAOYSA-N
PubChem CID69849
EC No.212-192-5
DTXSIDDTXSID6061109

Chemical & Physical Properties

Topological polar surface area0
Hydrogen bond donors0
Hydrogen bond acceptors0
Rotatable bonds1
Heavy atoms10
Formal charge0
Complexity95
Melting point166-169 °C
Boiling point168-170 °C(lit.)
Density0.873 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.491(lit.)
Flash point112 °F
Storage conditionsInert atmosphere,Room Temperature
Physical stateclear liquid
ColorColorless to Almost colorless
Specific gravity0.873
SolubilityNot miscible or difficult to mix with water.
Hydrolytic Sensitivity1: no significant reaction with aqueous systems
BRN1855012
InChI1S/C9H14Si/c1-10(2,3)9-7-5-4-6-8-9/h4-8H,1-3H3
InChIKeyKXFSUVJPEQYUGN-UHFFFAOYSA-N
SMILESC[Si](C)(C)c1ccccc1
CAS DataBase Reference768-32-1(CAS DataBase Reference)
FDA UNIIPX1SG1Q5YP
NIST Chemistry ReferenceSilane, trimethylphenyl-(768-32-1)
EPA Substance Registry SystemSilane, trimethylphenyl- (768-32-1)
UNSPSC Code12352103
NACRESNA.22
GHS pictogramGHS02,GHS05
Signal wordDanger
GHS hazard statementsH226-H318-H413
GHS precautionary statementsP280-P305+P351+P338
Personal protective equipment (PPE)Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard symbolsXi
Risk statements (R)10-41-36/37/38
Safety statements (S)16-26-36/39-37/39
UN transport numberUN 1993 3/PG 3
Water hazard class (WGK)3
TSCA inventory statusTSCA listed
Hazard class3Aquatic Chronic 4Eye Dam. 1Flam. Liq. 3
Packing groupIII
Customs code29319090
Storage class3 - Flammable liquids

Safety & Regulations

GHS classificationDangerH226 (97.8%): Flammable liquid and vapor [Warning Flammable liquids]H315 (13%): Causes skin irritation [Warning Skin corrosion/irritation]H318 (84.8%): Causes serious eye damage [Danger Serious eye damage/eye irritation]H319 (13%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]H413 (84.8%): May cause long lasting harmful effects to aquatic life [Hazardous to the aquatic environment, long-term hazard]P210, P233, P240, P241, P242, P243, P264, P264+P265, P273, P280, P302+P352, P303+P361+P353, P305+P351+P338, P305+P354+P338, P317, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P235, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 46 reports by companies from 4 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.
Hazard Classes and CategoriesFlam. Liq. 3 (97.8%)Skin Irrit. 2 (13%)Eye Dam. 1 (84.8%)Eye Irrit. 2 (13%)Aquatic Chronic 4 (84.8%)
Personal protective equipment (PPE)Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Water hazard class (WGK)3
TSCA inventory statusTSCA listed
UN transport numberUN 1993 3/PG 3
Customs code29319090
Risk statements (R)10-41-36/37/38
Signal wordDanger
GHS pictogramGHS02,GHS05
Hazard symbolsXi
Safety statements (S)16-26-36/39-37/39
Hazard class3Aquatic Chronic 4Eye Dam. 1Flam. Liq. 3
Storage class3 - Flammable liquids
Packing groupIII
GHS hazard statementsH226-H318-H413
GHS precautionary statementsP280-P305+P351+P338

Applications & Uses

Uses

It is employed as intermediate for pharmaceutical and organic synthesis.