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Trimethylsilane

CAS No.
993-07-7
Chemical Name:
Trimethylsilane
Synonyms
Silane, trimethyl-;(CH3)3SiH;trimethyl-silan;Trimethylsilane;trimethylsilicon;SILICON TRIMETHYL;Trimethylsilane,97%;Trimethylsilane 99.9%;Trimethylsilane 99.99%;2-Methyl-2-silapropane
CBNumber:
CB1264485
Molecular Formula:
C3H10Si
Molecular Weight:
74.2
MDL Number:
MFCD00039791
MOL File:
993-07-7.mol
MSDS File:
SDS
Last updated:2026-09-12 18:49:08

Trimethylsilane Properties

Melting point -135,9°C
Boiling point 6,7°C
Density 0,638 g/cm3
refractive index 1.3800 (estimate)
Flash point <-29°C
form liquid
Specific Gravity 0.638
Water Solubility 1.4g/L at 20℃
Specific Heat Capacity Cp(gas): 1.59 J/(g·K), at 25℃
Hydrolytic Sensitivity 3: reacts with aqueous base
InChI InChI=1S/C3H10Si/c1-4(2)3/h4H,1-3H3
InChIKey PQDJYEQOELDLCP-UHFFFAOYSA-N
SMILES [SiH](C)(C)C
LogP 2.2 at 20℃
CAS DataBase Reference 993-07-7
EWG's Food Scores 1
FDA UNII 9L70DJH2K0
EPA Substance Registry System Silane, trimethyl- (993-07-7)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Flame (GHS02)Gas Cylinder (GHS04)Exclamation Mark (GHS07)
GHS02,GHS04,GHS07
Signal word  Danger
Hazard statements  H220-H315-H319-H335
Precautionary statements  P210-P280-P321
Risk Statements  12-36/37/38
Safety Statements  9-16-26-33
RIDADR  3161
TSCA  TSCA listed
HS Code  2931900050
REACH Registrations Active
NFPA 704
4
2 1

Trimethylsilane price More Price(4)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Strem Chemicals 14-7925 Trimethylsilane, 97% 97% 993-07-7 100g $2054 2026-04-30 Buy
Apolloscientific OR17012 Trimethylsilane 97% 993-07-7 5g $466 2026-06-04 Buy
SynQuest Laboratories 5180-1-03 Trimethylsilane 99.99% 993-07-7 5G $195 2021-12-16 Buy
SynQuest Laboratories 5180-1-03 Trimethylsilane 99.99% 993-07-7 25g $375 2021-12-16 Buy
Product number Packaging Price Buy
14-7925 100g $2054 Buy
OR17012 5g $466 Buy
5180-1-03 5G $195 Buy
5180-1-03 25g $375 Buy

Trimethylsilane Chemical Properties, Uses, Production

Chemical Properties

Trimethylsilane is a colorless liquid with a pungent odor and heavier-than-air vapors that may travel along the ground and cause distant fires.

Uses

Potential reducing agent that will produce low boiling hexamethyldisiloxane by-product.

Flammability and Explosibility

Extremely flammable liquified gas

Toxics Screening Level

The Initial Threshold Screening Level (ITSL) is 340 μg/m3 annual average.

75-77-4
993-07-7
Synthesis of Trimethylsilane from Chlorotrimethylsilane
Global Suppliers ( 57)
Supplier Tel Email Country ProdList Advantage
QUANJIAO ARGOTECH NEW ELECTRONIC MATERIALS TECHNOLOGY CO.,LTD. +8613913851441 13913851441 murphysong@argotechs.com.cn China 60 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
Beijing HwrkChemical Technology Co., Ltd 89508211 18501085097 sales.bj@hwrkchemical.com China 9407 55
Syntechem Co.,Ltd info@syntechem.com China 12973 57
Shanghai T&W Pharmaceutical Co., Ltd. +86 21 61551611 China 9874 58
Shanghai Macklin Biochemical Co.,Ltd. 15221275939 15221275939 shenlinxing@macklin.cn China 15775 55
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. 025-66028182 17714375163 yftan@aikonchem.com China 16674 50
Suzhou Siso new material Co.,Ltd. 0512-65402974 18550909935 siso03@126.com China 1925 58

View Latest Price from Trimethylsilane manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
TRIMETHYLSILANE pictures 2020-01-10 TRIMETHYLSILANE
993-07-7
$9.80 1g ≥99% 100kg Career Henan Chemical Co
Trimethylsilane,97% TRIMETHYLSILANE (IN CYLINDER) trimethylsilicon Trimethylsilyl hydride, 2-Methyl-2-silapropane Trimethylsilane 99.9% SILICON TRIMETHYL (CH3)3SiH 2-Methyl-2-silapropane trimethyl-silan Trimethylsilane 99.99% Silane, trimethyl- Trimethylsilane 993-07-7 993-7-7 34157 C3H10Si organosilicon compounds TOP3