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CAS No 557-24-4 , Maleamic acid

  • Name: Maleamic acid
  • Synonyms: Maleamic acid;Maleamate;Maleic acid monoamide;
  • CAS Registry Number:
  • Melting Point: 158-161 ºC
  • Flash Point: 200.9°C
  • Boiling Point: 408.6°Cat760mmHg
  • Density: 1.376g/cm3
  • Refractive index: 1.528
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • Flash Point: 200.9°C
  • EINECS: 209-163-4
  • Molecular Weight: 115.09
  • InChI: InChI=1/C4H5NO3/c5-3(6)1-2-4(7)8/h1-2H,(H2,5,6)(H,7,8)/b2-1+
  • Risk Statements: S26;S36
  • Molecular Formula: C4H5NO3
  • Molecular Structure:CAS No:557-24-4 Maleamic acid

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References of Maleamic acid
Title: Maleamic Acid
CAS Registry Number: 557-24-4
CAS Name: (Z)-4-Amino-4-oxo-2-butenoic acid
Synonyms: maleic acid monoamide
Molecular Formula: C4H5NO3
Molecular Weight: 115.09
Percent Composition: C 41.74%, H 4.38%, N 12.17%, O 41.70%
Literature References: Prepd by passing ammonia into a mixture of maleic anhydride and an inert solvent such as xylene, dioxane, etc.: Robinson, Humburger, US 2459964 (1949 to Beck, Koller).
Properties: Crystals from alcohol, mp 172-173°. Also reported as mp 178-180° (dec). Very sol in water, hot alcohol. Practically insol in ether, chloroform, benzene.
Melting point: mp 172-173°; mp 178-180° (dec)