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CAS No 328-42-7 , 2-oxobutanedioic acid

  • Name: 2-oxobutanedioic acid
  • Synonyms: 2-Oxobutanedioic acid; Ketosuccinic acid; oxaloacetic acid;2-oxobutanedioic acid; Oxobutanedioic acid;oxalacetic acid; 2-Ketosuccinic acid; 2-Oxosuccinic acid; Oxosuccinic acid;
  • CAS Registry Number:
  • Transport: UN 3261
  • Melting Point: 161 ºC
  • Density: 1.631 g/cm3
  • Safety Statements: R34
  • Hazard Symbols: C: Corrosive;
  • EINECS: 206-329-8
  • Molecular Weight: 132.07156
  • InchiKey: KHPXUQMNIQBQEV-UHFFFAOYSA-N
  • InChI: InChI=1S/C4H4O5/c5-2(4(8)9)1-3(6)7/h1H2,(H,6,7)(H,8,9)
  • Risk Statements: S26;S36/37/39;S45
  • Molecular Formula: C4H4O5
  • Molecular Structure:CAS No:328-42-7 2-oxobutanedioic acid

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328-42-7 OXALACETIC ACID; 97%

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328-42-7 Oxalacetic acid

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References of 2-oxobutanedioic acid
Title: Oxalacetic Acid
CAS Registry Number: 328-42-7
CAS Name: Oxobutanedioic acid
Synonyms: oxosuccinic acid; ketosuccinic acid
Molecular Formula: C4H4O5
Molecular Weight: 132.07
Percent Composition: C 36.38%, H 3.05%, O 60.57%
Line Formula: HOOCCOCH2COOH
Literature References: Prepd by hydrolyzing sodium diethyloxalacetate with concd HCl: Heidelberger, Hurlbert, J. Am. Chem. Soc. 72, 4704 (1950). Prepn of cis-enol form: Heidelberger, Biochem. Prep. 3, 59 (1953).
 
Derivative Type: Diethyl ester see Ethyl Oxalacetate
 
Derivative Type: trans-enol Form
Synonyms: Hydroxyfumaric acid
Properties: Crystals from acetone + benzene, mp 184°. K at 17° = 2.76 ′ 10-3. Soluble in water, ethanol, ether. Can be converted into the lower-melting cis-form, mp 152°, by dissolving the acid in water and re-isolating it as rapidly as possible.
Melting point: mp 184°; mp 152°
 
Derivative Type: cis-enol Form
Synonyms: Hydroxymaleic acid
Properties: Crystals from ethyl acetate + carbon tetrachloride, mp 152°. K at 17° = 2.505 ′ 10-3. Sol in ethanol, acetone, ethyl acetate. Sparingly sol in ether. Insol in benzene, chloroform, ligroin.
Melting point: mp 152°