C5H10Si
98.22 g/mol
Pharmaceutical IntermediateDanger
Ethynyltrimethylsilane
CAS1066-54-2EC213-919-9
Category
Pharmaceutical Intermediate
Compound Class
Organometallic
Primary Use
Pharmaceutical Intermediate
Ethynyltrimethylsilane is a silyl-protected terminal alkyne building block widely used in pharmaceutical intermediate manufacturing. Its conserved structure enables selective chemical transformations in research and industrial synthesis.
Pharmaceutical intermediate building blockReagent for alkyne coupling reactionsProtecting group for terminal alkynes 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.
Sourcing Ethynyltrimethylsilane?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Related Compounds
ApplicationSame Use
(2S,5R)-5-((Benzyloxy)amino)piperidine-2-carboxamide
CAS1416134-49-0
pharmaceutical intermediate
ApplicationSame Use
N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-1h-imidazole-1-carboxamide
CAS1983947-08-5
pharmaceutical intermediate
ApplicationSame Use
4-(Aminomethyl)-3-pyrrolidinone O-methyloxime hydrochloride
CAS215229-16-6
pharmaceutical intermediate
ApplicationSame Use
1,4-Dioxaspiro[4.5]decan-8-ol
CAS22428-87-1
pharmaceutical intermediate
ReferenceSame Category
Methyl 2,4-difluorobenzoate
CAS106614-28-2
pharmaceutical intermediate
ReferenceSame Category
N-Sulphamyl-3-chloropropionamidine hydrochloride
CAS106649-95-0
pharmaceutical intermediate
ReferenceSame Category
2-Methyl-5-chloromethylpyridine hydrochloride
CAS106651-81-4
pharmaceutical intermediate
ReferenceSame Category
Mehtyl 6-[3-(1-adamanty)-4-methoxy phenyl]-2-naphthoate
CAS106685-41-0
pharmaceutical intermediate
Safety Reference
Danger
H225Highly flammable liquid and vapour
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Ethynyltrimethylsilane (CAS 1066-54-2) 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
ethynyl(trimethyl)silane
InChIKey
CWMFRHBXRUITQE-UHFFFAOYSA-N
SMILES
C[Si](C)(C)C#C
Synonyms (26)
- TMSA
- (Trimethylsilyl)acetylene-d
- (trimethylsily)acetylene
- 1-(Trimethylsilyl)acetylene
- 1-Trimethylsilylethyne
- 1-ethynyl(trimethyl)silane
- 2-trimethylsilylacetylene
- Acetylene, trimethylsilyl-
- Ethyne,-trimethylsilyl
- Ethynyltrimethylsilane
- Silane, ethynyltrimethyl-
- Silane, trimethyl-, ethynyl-
- TMS acetylene
- Trimethylethynylsilane
- Trimethylsilylacetylene
- Trimetylsilylacetylene
- ethinyltrimethylsilane
- ethynyitrimethylsilane
- tms-acetylide
- trimethlysilylacetylene
- trimethylsilanylacetylene
- trimethylsilanylethyne
- trimethylsilyl acetylide
- trimethylsilylacetylen
- trimethylsilylethyne
- trimethysilyl acetylene
Sourcing Ethynyltrimethylsilane?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.