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CAS No 97-65-4 , 2-methylidenebutanedioic acid

  • Name: 2-methylidenebutanedioic acid
  • Synonyms: METHYLENESUCCINIC ACID;2-methylidenebutanedioic acid; Butanedioic acid; Methylenebutanedioic acid; 2-Methylenesuccinic acid; Propylenedicarboxylic acid; methylene-;
  • CAS Registry Number:
  • Melting Point: 166-167 ºC
  • Density: 1.573
  • Water Solubility: in alcohol. slightly soluble in organic solvents
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • HS Code: 29171990
  • EINECS: 202-599-6
  • Molecular Weight: 130.09874
  • InchiKey: LVHBHZANLOWSRM-UHFFFAOYSA-N
  • InChI: InChI=1S/C5H6O4/c1-3(5(8)9)2-4(6)7/h1-2H2,(H,6,7)(H,8,9)
  • Risk Statements: S26;S36
  • Molecular Formula: C5H6O4
  • Molecular Structure:CAS No:97-65-4 2-methylidenebutanedioic acid

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97-65-4 Itaconic Acid

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References of 2-methylidenebutanedioic acid
Title: Itaconic Acid
CAS Registry Number: 97-65-4
CAS Name: Methylenesuccinic acid
Synonyms: propylenedicarboxylic acid
Molecular Formula: C5H6O4
Molecular Weight: 130.10
Percent Composition: C 46.16%, H 4.65%, O 49.19%
Literature References: Obtained by dry distillation of citric acid and subsequent treatment of the anhydride with water. Produced on a large scale by submerged aerobic fermentation using Aspergillus terreus and low cost carbohydrates from beet or cane: Kane et al., US 2385283 (1945 to Pfizer). Synthesis from propargyl chloride, carbon monoxide, nickel carbonyl and water: Chiusoli, US 3025320 (1962 to Montecatini).
Properties: Hygroscopic crystals; characteristic odor. d 1.63. mp 162-164° with decompn. Also reported as mp 172° [Kinoshita, Acta Phytochim. 5, 273 (1931)]. One gram dissolves in 12 ml water, 5 ml alcohol; very slightly sol in benzene, chloroform, ether, carbon disulfide, petr ether. Keep well closed.
Melting point: mp 162-164° with decompn; mp 172° [Kinoshita, Acta Phytochim. 5, 273 (1931)]
Density: d 1.63