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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 12820050Generated: October 30, 2026

4-Bromopent-1-yne

https://huagongshe.com/en/chemical/12820050

4-Bromopent-1-yne molecular structure

Identifiers & Physical Properties

CAS No.83961-13-1
Molecular formulaC5H7Br
Average molar mass147.01 g/mol
Monoisotopic mass145.97311 g/mol
SMILESC#CCC(C)Br
InChIKeyUAJKNRZBWKPSJO-UHFFFAOYSA-N
PubChem CID12820050
EC No.894-911-8

Chemical & Physical Properties

XLogP2
Topological polar surface area0
Hydrogen bond donors0
Hydrogen bond acceptors0
Rotatable bonds1
Heavy atoms6
Formal charge0
Complexity67.3

Safety & Regulations

GHS classificationDangerH227 (100%): Combustible liquid [Warning Flammable liquids]P210, P260, P261, P264, P270, P271, P280, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P319, P321, P330, P363, P370+P378, P403, P403+P233, P405, and P501 (click each P-code to see the statement)The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.
Hazard Classes and CategoriesFlam. Liq. 4 (100%)