Basic information
CAS NO
590-93-2
EINECS
209-695-7
Molecular Formula
C4H3O2
Molecular Weight
83.066
English Name
2-Butynoic acid
Synonyms
1-Propynecarboxylic acid, 3-Methylpropiolic acid, NSC 174116, Tetrolic acid, but-2-ynoic acid, but-2-ynoate, 2-butylnoic acid
Physical and Chemical Properties
Melting point
74-78℃
Boiling point
203°C at 760 mmHg
Flash point
90.9°C
Vapour Pressure
0.117mmHg at 25°C
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