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8.00147 Sigma-Aldrich

Acetylenedicarboxylic acid

for synthesis

Synonym: Acetylenedicarboxylic acid, Butynedioic acid

  • CAS Number 142-45-0

  • Empirical Formula (Hill Notation) C4H2O4

  • Molecular Weight 114.06

  •  MDL number MFCD00004362

  •  EC Index Number 205-536-0

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Properties

Quality Level   200
assay   ≥97.0% (acidimetric)
mp   180-187 °C
transition temp   flash point 131 °C
bulk density   550 kg/m3
InChI   1S/C4H2O4/c5-3(6)1-2-4(7)8/h(H,5,6)(H,7,8)
InChI key   YTIVTFGABIZHHX-UHFFFAOYSA-N
storage conditions   Store at +2°C to +8°C.

Description

Analysis Note

Assay (acidimetric): ≥ 97.0 %
Identity (IR): passes test

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