3-Chloro-1-butyne TCI C1195

Chemical Identity

CAS No.: 21020-24-6
PubChem: CID 30443·SID 87566221
Formula: C4H5Cl
Molecular weight: 88.53 g/mol
Purity: >98.0%(GC)
Reference databases: ChemSpider

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: 3-chlorobut-1-yne
SMILES: CC(C#C)Cl
InChIKey: PZFBULOUMNPBFA-UHFFFAOYSA-N
MDL: MDL00143109

Rp 7.234.500,00

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Berat 1g 5g

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TCI C1195 3-Chloro-1-butyne, CAS 21020-24-6, is a compact propargylic halide that combines a terminal alkyne with a reactive carbon–chlorine bond. It is widely used for propargylation reactions, where nucleophiles displace the chloride to install a butynyl unit that remains available for further functionalisation. The retained terminal alkyne makes it a convenient precursor for copper-catalysed azide–alkyne cycloaddition, Sonogashira coupling, and alkyne-based cyclisations. AMI Scientific offers 1 g and 5 g packs for research laboratories, and this volatile, reactive reagent must be handled in a fume hood in accordance with the manufacturer's Safety Data Sheet.