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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 45079110Generated: October 28, 2026

5-Ethynyl-4-hydroxy-1,3-oxazol-2(3H)-one

2(3H)-Oxazolone, 5-ethynyl-4-hydroxy- · 2(3H)-Oxazolone, 5-ethynyl-4-hydroxy- (9CI)

https://huagongshe.com/en/chemical/45079110

5-Ethynyl-4-hydroxy-1,3-oxazol-2(3H)-one molecular structure

Identifiers & Physical Properties

CAS No.75610-96-7
Molecular formulaC5H3NO3
Average molar mass125.08 g/mol
Monoisotopic mass125.01129296 g/mol
SMILESC#Cc1oc(=O)[nH]c1O
InChIKeyXLYPVHLKQVJTMP-UHFFFAOYSA-N
PubChem CID45079110
DTXSIDDTXSID00663654

Chemical & Physical Properties

XLogP-0.2
Topological polar surface area58.6
Hydrogen bond donors2
Hydrogen bond acceptors3
Rotatable bonds1
Heavy atoms9
Formal charge0
Complexity232