Basic information
- CAS
993-07-7- Standard SMILES
C[SiH](C)C- InChIKey
PQDJYEQOELDLCP-UHFFFAOYSA-N- Molecular formula
- C3H10Si
- Average molar mass
- 74.2 g/mol
- Monoisotopic mass
- 74.05517685
Names & identifiers
- Preferred name
- Trimethylsilane
- IUPAC
- trimethylsilane
- English name
- TRIMETHYLSILANE
- Molecular formula
- C3H10Si
- Molecular weight
- 74.2
Names & synonyms
(CH3)3SiH2-Methyl-2-silapropane993-07-7Silane, trimethyl-TrimethylsilaneTrimethysilanetrimethyl silane(trimethyl)silaneTMSHTrimethylsilyl hydrideC3H10SiSCHEMBL29016
Show more names
trimethyl-silantrimethylsiliconSILICON TRIMETHYLTrimethylsilane,97%Trimethylsilane 99.9%Trimethylsilane 99.99%
SCHEMBL217606SCHEMBL1242763SY068721NS00043056G77544Q1102218110477-51-5
Database identifiers
- CAS
993-07-7- PubChem CID
- 70435
- DTXSID
DTXSID60870822- EC Number
- 213-603-0
Properties
Computed structural properties
- Topological polar surface area
- 0 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 0
- Rotatable bonds
- 0
- Heavy atoms
- 4
- Formal charge
- 0
- Complexity
- 8
Experimental & physicochemical properties
Physical Description
Gas Vapor
Colorless compressed gas with a mild repulsive odor; [Linde Gas MSDS]
Physicochemical properties
- Melting point
- -135 · -135,9°C
- Boiling point
- 6 · 6,7°C
- Density
- 0 · 0,638 g/cm3
- refractive index
- 1.38 · 1.3800 (estimate)
- Flash point
- -29 °C · <-29°C
- form
- liquid
- Specific Gravity
- 0.638 · 0.638
- Water Solubility
- 1.4 g/L · 1.4g/L at 20℃
- Specific Heat Capacity
- 1.59 J/ · Cp(gas): 1.59 J/(g·K), at 25℃
- Hydrolytic Sensitivity
- 3 · 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 · 2.2 at 20℃
- CAS DataBase Reference
- 993 · 993-07-7
- EWG's Food Scores
- 1 · 1
- FDA UNII
- 9 L70DJH2K0 · 9L70DJH2K0
- EPA Substance Registry System
- Silane, trimethyl- (993-07-7)
- Symbol(GHS)
- 2 · GHS02,GHS04,GHS07
- Signal word
- Danger
- Hazard statements
- 220 · H220-H315-H319-H335
- Precautionary statements
- 210 · P210-P280-P321
- Risk Statements
- 12 · 12-36/37/38
- Safety Statements
- 9 · 9-16-26-33
- RIDADR
- 3161 · 3161
- TSCA
- TSCA listed
- HS Code
- 2931900050 · 2931900050
- REACH Registrations
- Active
Safety & regulation
GHS classification
GHS Classification
Danger
H220 (82%): Extremely flammable gas [Danger Flammable gases]；H224 (18%): Extremely flammable liquid and vapor [Danger Flammable liquids]；H280 (99.5%): Contains gas under pressure; may explode if heated [Warning Gases under pressure]；H315 (18.9%): Causes skin irritation [Warning Skin corrosion/irritation]；H319 (18.9%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]；H335 (18.9%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
P203, P210, P222, 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, P377, P381, P403, P403+P233, P403+P235, P405, P410+P403, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 217 reports by companies from 8 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 information
Regulatory Information
Silane, trimethyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Silane, trimethyl- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 24-05-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/19701
Hazards SummaryReacts with water evolving methane; May form silicic acid on contact with tissue (irritant); Sudden release of compressed gas may cause frostbite; [Linde Gas MSDS] See Diethylsilane.
Hazard Classes and CategoriesFlam. Gas 1 (82%)；Flam. Liq. 1 (18%)；Press. Gas (Comp.) (99.5%)；Skin Irrit. 2 (18.9%)；Eye Irrit. 2 (18.9%)；STOT SE 3 (18.9%)
Toxicology
Toxicity DataLC50 (rat) > 5,000 ppm/1hr
Regulatory information
Regulatory Information
Silane, trimethyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Silane, trimethyl- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 24-05-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/19701
Safety data
- tsca
- TSCA listed
- ridadr
- 3161
- hs_code
- 2931900050
- risk_code
- 12-36/37/38
- Signal word
- Danger
- Symbol(GHS)
- GHS02,GHS04,GHS07
- safety_code
- 9-16-26-33
- Hazard statements
- H220-H315-H319-H335
- REACH Registrations
- Active
- Precautionary statements
- P210-P280-P321
Chemistry & industry
Uses & manufacturing
U.S. Production2023: 75,000 - <500,000 lb；2022: 75,000 - <500,000 lb；2021: 75,000 - <500,000 lb；2020: 75,000 - <500,000 lb
Industry UsesIntermediate
General Manufacturing Information
All Other Basic Inorganic Chemical Manufacturing；Electrical Equipment, Appliance, and Component Manufacturing
Silane, trimethyl-: ACTIVE
Applications
UsesPotential reducing agent that will produce low boiling hexamethyldisiloxane by-product.
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers36 total
上海源象化学有限公司17312431727 · [email protected]
安徽旺山旺水特种气体有限公司15906197626 · [email protected]
江西核研院新材料有限公司18901398682 18901398682 · [email protected]
Shanghai Innopharm Industrial Co., Ltd.+86-21-59960785 +86-17701845089 · [email protected]
Dayang Chem (Hangzhou) Co.,Ltd.+86-0571-88938639 17705817739 · [email protected]
Syntechem Co.,Ltd[email protected]
上海迈瑞尔生化科技有限公司4006356688 18621169109 · [email protected]
武汉易泰科技有限公司上海分公司18930552037 · [email protected]
尚澜气体（上海）有限公司4001882517 13323475516 · [email protected]
上海嘉斯保气体有限公司13218776790 13218776790 · [email protected]
上海遐瑞医药科技有限公司+86 21 61551611
上海麦克林生化科技股份有限公司15221275939 15221275939 · [email protected]
江苏艾康生物医药研发有限公司025-66028182 17714375163 · [email protected]
南兴化工（江苏）有限公司0512-66387035 18662433356 · [email protected]
郑州九亿时光新材料有限公司+86-15225627621 +86-13213167925 · [email protected]
广东翁江化学试剂有限公司0751-2815987 13927875076 · [email protected]
陕西缔都医药化工有限公司029-029-81120477 17792793610 · [email protected]
启源（广东）医药化工有限公司18026564465 · [email protected]
茂图气体设备（上海）有限公司17301833415 · [email protected]
陕西缔都医药化工有限公司+86-29-81139210 +86-17392587031 · [email protected]
北京华威锐科化工科技有限公司89508211 18501085097 · [email protected]
安泰精细化工技术有限公司18503026267 · [email protected]
上海万千化工有限公司18796480002 18796480002 · [email protected]
苏州矽索新材料有限公司（生产型企业）0512-65402974 18550909935 · [email protected]
河南天孚化工有限公司+86-0371-55170693 +86-19937530512 · [email protected]
career henan chemical co+86-0371-86658258 · [email protected]
湖南秉航新材料有限公司0731-85567275 19313119732 · [email protected]
杭州卡威化工科技有限公司0571-87824856 13676885136
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.+8618950047208 · [email protected]
上海亿万化工有限公司00-18662433356 18662433356 · [email protected]
广东元丰化学试剂有限公司0751-2829979 13318584237 · [email protected]
北京百灵威科技有限公司18210857532 18210857532 · [email protected]
全椒亚格泰电子新材料科技有限公司+8613913851441 13913851441 · [email protected]
上海珅桔化工有限公司13167128868 13248068001 · [email protected]
上海瀚扬化工产品有限公司18063541133 18063541133 · [email protected]
Hefei TNJ Chemical Industry Co.,Ltd.+86-0551-65418671 +86-189 4982 3763 · [email protected]
Related reactions
78 records
Compound notes
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