but-2-ynedioic acid (Molecular Formula: C₄H₂O₄)

Product Name:	but-2-ynedioic acid
CAS Registry Number:	142-45-0
EINECS:	205-536-0
Synonyms:	Butynedioic acid; 142-45-0; NSC631597;but-2-ynedioic acid; Acetylenedicarboxylic acid (8CI); but-2-ynedioic acid; acetylenedicarboxylate; 2-butynedioic acid;acetylenedicarboxylic acid;
Molecular Structure:
Molecular Formula:	C₄H₂O₄
Molecular Weight:	114.05628
Density:	1.699 g/cm3
Boiling Point:	362.4 °C at 760 mmHg
Melting Point:	180-187℃
Flash Point:	131℃
Risk Codes:	S26,S37/39,S45,
Safety Statements:	R25,R36/37/38,
Hazard Symbols:	T:Toxic;Xi:Irritant;

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