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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 77513Generated: October 26, 2026

Silane, trimethyl(methylthio)-

Methyl trimethylsilyl sulfide · (CH3)3SiSCH3 · Methylthiotriemthylsilane · (Methylthio)triemthylsilane · trimethyl(methylthio)-silan · (METHYLTHIO)TRIMETHYLSILANE · METHYL TRIMETHYSILYL SULFIDE · TRIMETHYLSILYLMETHYL SULFIDE

https://huagongshe.com/en/chemical/77513

Silane, trimethyl(methylthio)- molecular structure

Identifiers & Physical Properties

CAS No.3908-55-2
Molecular formulaC4H12SSi
Average molar mass120.29 g/mol
Monoisotopic mass120.04289809 g/mol
SMILESCS[Si](C)(C)C
InChIKeyJDYCDPFQWXHUDL-UHFFFAOYSA-N
PubChem CID77513
EC No.223-466-9
DTXSIDDTXSID5063231

Chemical & Physical Properties

Topological polar surface area25.3
Hydrogen bond donors0
Hydrogen bond acceptors1
Rotatable bonds1
Heavy atoms6
Formal charge0
Complexity37
Kovats Retention Index745
Boiling point110-114 °C(lit.)
Density0.848 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.451(lit.)
Flash point38 °F
Physical stateliquid
Specific gravity0.850
Hydrolytic Sensitivity7: reacts slowly with moisture/water
BRN2035839
InChI1S/C4H12SSi/c1-5-6(2,3)4/h1-4H3
InChIKeyJDYCDPFQWXHUDL-UHFFFAOYSA-N
SMILESCS[Si](C)(C)C
FDA UNIIG847F868MM
EPA Substance Registry SystemSilane, trimethyl(methylthio)- (3908-55-2)
UNSPSC Code12352103
NACRESNA.22
GHS pictogramGHS02,GHS07
Signal wordDanger
GHS hazard statementsH225-H315-H319-H335
GHS precautionary statementsP210-P302+P352-P305+P351+P338
Target organsRespiratory system
Personal protective equipment (PPE)Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard symbolsXi
Risk statements (R)10-36/37/38
Safety statements (S)26-36
UN transport numberUN 1993 3/PG 2
Water hazard class (WGK)3
F10-13-21
TSCA inventory statusTSCA listed
Hazard class3.1Eye Irrit. 2Flam. Liq. 2Skin Irrit. 2STOT SE 3
Packing groupII
Customs code2931900090
Storage class3 - Flammable liquids
Limited quantities1.0 L (0.3 gallon) (liquid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)

Safety & Regulations

GHS classificationDangerH225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposureRespiratory tract irritation]P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 39 reports by companies from 2 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.
Regulatory informationSilane, trimethyl(methylthio)-: Does not have an individual approval but may be used under an appropriate group standard
Hazard Classes and CategoriesFlam. Liq. 2 (100%)Skin Irrit. 2 (100%)Eye Irrit. 2 (100%)STOT SE 3 (100%)
F10-13-21
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 2
Customs code2931900090
Risk statements (R)10-36/37/38
Signal wordDanger
GHS pictogramGHS02,GHS07
Hazard symbolsXi
Safety statements (S)26-36
Hazard class3.1Eye Irrit. 2Flam. Liq. 2Skin Irrit. 2STOT SE 3
Storage class3 - Flammable liquids
Packing groupII
Target organsRespiratory system
GHS hazard statementsH225-H315-H319-H335
Limited quantities1.0 L (0.3 gallon) (liquid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)
GHS precautionary statementsP210-P302+P352-P305+P351+P338