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CAS No 498-23-7 , Citraconic acid

  • Name: Citraconic acid
  • Synonyms: (Z)-2-Methyl-2-butenedioic acid; cis-Methylbutenedioic acid;2-Methyl-2-butenedioic acid; Citraconicacid; 97%;Citraconic acid; Methylmaleic acid;
  • CAS Registry Number:
  • Transport: 2811
  • Melting Point: 88-92 ºC
  • Flash Point: 172
  • Boiling Point: 336
  • Density: 1.62
  • Safety Statements: R22;R36/37/38
  • Hazard Symbols: Xn: Harmful;
  • Flash Point: 172
  • EINECS: 207-858-7
  • Molecular Weight: 130.10
  • InChI: InChI=1/C5H6O4/c1-3(5(8)9)2-4(6)7/h2H,1H3,(H,6,7)(H,8,9)/b3-2-
  • Risk Statements: S26;S37/39
  • Molecular Formula: C5H6O4
  • Molecular Structure:CAS No:498-23-7 Citraconic acid

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References of Citraconic acid
Title: Citraconic Acid
CAS Registry Number: 498-23-7
CAS Name: (Z)-2-Methyl-2-butenedioic acid
Synonyms: methylmaleic acid
Molecular Formula: C5H6O4
Molecular Weight: 130.10
Percent Composition: C 46.16%, H 4.65%, O 49.19%
Literature References: Obtained by carefully heating citric acid at about 175°. Production of citraconic anhydride from itaconic acid: Humphrey, US 2966498 (1960 to Pfizer). Toxicity study: P. M. Jenner et al., Food Cosmet. Toxicol. 2, 327 (1964).
Properties: Hygroscopic monoclinic crystals; characteristic odor. d 1.62. mp ~90° (dec). Freely sol in water, alc, ether, slightly in chloroform. Practically insol in benzene, petr ether. LD50 in rats, mice (mg/kg): 1320, 2260 orally (Jenner).
Melting point: mp ~90° (dec)
Density: d 1.62
Toxicity data: LD50 in rats, mice (mg/kg): 1320, 2260 orally (Jenner)