CAS No: 590-93-2, Chemical Name: 2-Butynoic acid
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590-93-2 2-Butynoic acid

product Name 2-Butynoic acid
Synonyms 1-Propynecarboxylic acid; 3-Methylpropiolic acid; NSC 174116; Tetrolic acid; but-2-ynoic acid; but-2-ynoate
Molecular Formula C4H3O2
Molecular Weight 83.066
InChI InChI=1/C4H4O2/c1-2-3-4(5)6/h1H3,(H,5,6)/p-1
CAS Registry Number 590-93-2
EINECS 209-695-7
Molecular Structure 590-93-2 2-Butynoic acid
Melting point 74-78℃
Boiling point 203°C at 760 mmHg
Flash point 90.9°C
Vapour Pressur 0.117mmHg at 25°C
Hazard Symbols  C:Corrosive;
Risk Codes R20/21/22:;
R34:;
Safety Description S26:;
S36/37/39:;
S45:;