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CAS No 129-64-6 , Carbic anhydride Search by region : Germany

  • Name: Carbic anhydride
  • Synonyms: endo-cis-5-Norbornene-endo-2,3-dicarboxylic anhydride; endo-cis-Bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride;Endo-3,6-methylene-1,2,3,6-tetrahydrophthalic anhydride; cis-5-Norbornene-endo-2,3-dicarboxylic anhydride; endo-cis-5-Norbornene-2,3-dicarboxylic anhydride; endo-3,6-methylene-1,2,3,6-tetrahydrophthalic anhydride; Bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride~Carbic anhydride~Himic anhydride~Nadic anhydride; 5-Norborene-2,3-dicarboxylic anhydride; 5-Norbornene-2,3-dicarboxylic anhydride; endo-cis-Himic anhydride; 8,9,10-trinorborn-5-ene-2,3-dicarboxylic anhydride; Nadic anhydride;Carbic anhydride;
  • CAS Registry Number:
  • Melting Point: 162-165 ºC
  • Density: 1.08
  • Refractive index: 1.4365
  • Safety Statements: R41;R42/43
  • Hazard Symbols: Xn: Harmful;
  • EINECS: 204-957-7
  • Molecular Weight: 164.16
  • InChI: InChI=1/C9H8O3/c10-8-6-4-1-2-5(3-4)7(6)9(11)12-8/h1-2,4-7H,3H2/t4-,5-,6-,7+/m0/s1
  • Risk Statements: S22;S24;S26;S37/39
  • Molecular Formula: C9H8O3
  • Molecular Structure:CAS No:129-64-6 Carbic anhydride

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129-64-6 CIS-5-NORBORNENE-ENDO-2,3-DICARBOXYLIC ANHYDRIDE, PREDOMINANTLY ENDO; 97%,

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References of Carbic anhydride
Title: Carbic Anhydride
CAS Registry Number: 129-64-6
CAS Name: 3aa,4,7,7aa-Tetrahydro-4a,7a-methanoisobenzofuran-1,3-dione
Synonyms: cis-endo-5-norbornene-2,3-dicarboxylic anhydride; endo-cis-bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride; 3,6-endo-methylene-1,2,3,6-tetrahydro-cis-phthalic anhydride; 3,6-endo-methylene-D4-tetrahydrophthalic anhydride; nadic anhydride
Molecular Formula: C9H8O3
Molecular Weight: 164.16
Percent Composition: C 65.85%, H 4.91%, O 29.24%
Literature References: Prepd by the reaction of maleic anhydride with cyclopentadiene in benzene: Diels, Alder, Ann. 460, 98 (1928). Crystal structure: Destro et al., Acta Crystallogr. 25B, 2465 (1969).
Properties: Shiny, orthorhombic crystals from petr ether, mp 164-165°. d 1.417. Converted to equilibrium mixtures with exo-cis isomers when heated above mp. Sol in benzene, toluene, acetone, carbon tetrachloride, chloroform, ethanol, ethyl acetate. Slightly sol in petr ether. Reacts with water to form the corresponding acid. Forms the g-lactone of 5-hydroxy-2,3-norcamphanedicarboxylic acid in 50% H2SO4.
Melting point: mp 164-165°
Density: d 1.417