C3H9ClSi
108.64 g/mol
Industrial ChemicalDanger
Chlorotrimethylsilane
CAS75-77-4EC200-900-5
Category
Industrial Chemical
Compound Class
Halocarbon
Primary Use
Silylating agent and silicone intermediate
Chlorotrimethylsilane is an organosilicon compound primarily used as a silylating agent in chemical synthesis and as an intermediate in the production of silicone fluids. It imparts water repellency to treated surfaces and acts as a chain-terminating agent in silicone polymer chemistry.
Production of silicone fluidsWater-repellent compound manufacturingSilylating agent in organic synthesis
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
Dimethyldichlorosilane
CAS75-78-5
Production of silicone products and polymers
ReferenceSame Category
Methyltrichlorosilane
CAS75-79-6
Intermediate for silicones production
ReferenceSame Category
Neopentyl alcohol
CAS75-84-3
organic synthesis and solvent
ReferenceSame Category
Amylene hydrate
CAS75-85-4
Solvent and frothing agent
Referencestereoisomer of
Chlorotri(methyl-d3)silane
CAS20395-57-7
research compound
Safety Reference
Danger
H225Highly flammable liquid and vapour
H301Toxic if swallowed
H312Harmful in contact with skin
H314Causes severe skin burns and eye damage
H331Toxic if inhaled
H351Suspected of causing cancer
H318Causes serious eye damage
H371May cause damage to organs
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for Chlorotrimethylsilane (CAS 75-77-4) is 2931.90.
HS code (international, 6-digit)
2931.90
EU CN code (8-digit)
2931 90 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
chloro(trimethyl)silane
InChIKey
IJOOHPMOJXWVHK-UHFFFAOYSA-N
SMILES
C[Si](C)(C)Cl
Synonyms (42)
- TMCS
- Chlorotrimethylsilane
- Chlorotrimethylsilane (TMCS)
- Chlorotrimethylsilicane
- KA 31
- Monochlorotrimethylsilicon
- Silane, chlorotrimethyl-
- Silane, trimethylchloro-
- Silicane, chlorotrimethyl-
- Silylium, chloride
- TMCS; Trimethylchlorosilane
- TMS chloride
- TMSCl
- Trimethyl chlorosilane
- Trimethylsilyl chloride
- Trimethylsilyl chloride, TMCS
- chiorotrimethylsilane
- chlorotrimethlsilane
- chlorotrimethylsilan
- chlorotrimethysilane
- chlorotrimetylsilane
- chlortrimethylsilane
- chorotrimethylsilane
- monochlorotrimethylsilane
- trimehtylsilyl chloride
- trimethyichlorosilane
- trimethylchiorosilane
- trimethylchlorosilan
- trimethylchlorsilan
- trimethylchlorsilane
- trimethylchorosilane
- trimethylsilane chloride
- trimethylsilanyl chloride
- trimethylsilylchoride
- trimethysilylchloride
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