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Acetylenedicarboxylic acid

**** Identification ****
Name: Acetylenedicarboxylic acid
Synonyms: 2-Butyne-1,4-dioic acid; 2-Butynedioic acid
Molecular Structure: chemoffer CAS #: 142-45-0
Molecular Formula: C4H2O4
Molecular Weight: 114.06
CAS Number: 142-45-0
EINECS: 205-536-0
**** Properties ****
Melting point: 180-187°C
Flash point: 131°C
Water solubility: soluble
**** Safety Data ****
Hazard Symbols: symbolsymbolT;Xi Details
Risk Codes: R25;R36/37/38 Details
Safety Description: S26;S37/39;S45 Details
Transport Information: UN 2811

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