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CAS No 105-61-3 , N-Carbamoylmaleamic acid

  • Name: N-Carbamoylmaleamic acid
  • Synonyms: Maleuric acid; Maleic acid monoureide~Maleuric acid;N-Carbamoylmaleamic acid;
  • CAS Registry Number:
  • Melting Point: 156-159°C
  • Safety Statements: R36/37/38:Irritatingtoeyes,respiratorysystemandskin.;
  • EINECS: 203-314-8
  • Molecular Weight: 158.11
  • InChI: InChI=1/C5H6N2O4/c6-5(11)7-3(8)1-2-4(9)10/h1-2H,(H,9,10)(H3,6,7,8,11)/b2-1+
  • Risk Statements: S26:Incaseofcontactwitheyes,rinseimmediatelywithplentyofwaterandseekmedicaladvice.;S36:Wearsuitableprotectiveclothing.;
  • Molecular Formula: C5H6N2O4
  • Molecular Structure:CAS No:105-61-3 N-Carbamoylmaleamic acid

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105-61-3 N-CARBAMOYLMALEAMIC ACID; 98%

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105-61-3 N-CARBAMOYLMALEAMIC ACID

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105-61-3 N-CARBAMOYLMALEAMIC ACID

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References of N-Carbamoylmaleamic acid
Title: Maleuric Acid
CAS Registry Number: 105-61-3
CAS Name: (Z)-4-[(Aminocarbonyl)amino]-4-oxo-2-butenoic acid
Synonyms: N-carbamoylmaleamic acid; maleylurea
Molecular Formula: C5H6N2O4
Molecular Weight: 158.11
Percent Composition: C 37.98%, H 3.82%, N 17.72%, O 40.48%
Literature References: Prepd from maleic anhydride and urea: Dunlap, Phelps, Am. Chem. J. 19, 492 (1897); Batt et al., J. Am. Chem. Soc. 76, 3663 (1954).
Properties: Crystals from hot water, dec 158.5°. uv max: 235 nm (e 8720). Sol in hot acetic acid. Practically insol in cold water, cold acetic acid, acetone, ligroin, chloroform, alc, ether.
Absorption maximum: uv max: 235 nm (e 8720)
 
Derivative Type: Methyl ester
Properties: Crystals, mp 113-114°. Sol in hot water, methanol, ethanol, acetone, dioxane.
Melting point: mp 113-114°
 
Derivative Type: Butyl ester
Properties: Crystals, mp 95-98°. Sol in ethanol, acetone, benzene, chloroform.
Melting point: mp 95-98°