6-Endomethylene-1

• Category :

  Organic chemicals and Derivatives

• Synonyms :

  5-Norbornene-2,3-dicarboxylic Anhydride;Carbic anhydride;Himic anhydride;Nadic anhydride;Bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride;NBDA;

• CAS NO :

  826-62-0

• EC NO :

  204-957-7

• Molecular Formula :

  C₉H₈O₃

• Molecular Weight :

  164.158

• Main Specifications :

• 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?

• Product description :

  Name: Nadic anhydride, Carbic anhydride, 5-Norbornene-2,3-dicarboxylic anhydride, 3,6-Endomethylene-1,2,3,6-tetrahydrophthalic anhydride.
  Product No: A1001
  CAS No: 826-62-0
  Formula:C₉H₈O₃
  Formula Weight: 164.16
  Properties: Soluble in benzene, toluene, acetone and chloroform, etc. Sensitive to moisture. Specific gravity: 1.417.
  Application:
  1. Used for unsaturated polyester resin to provide it with better air drying performance, heat resistance, smoothness, electrical property, corrosion resistance and mechanical strength than phthalic anhydride and THPA.
  2. Used for epoxy resin curing agents in casting, laminating and powder moulding, etc. The condensate is provided with excellent resistance to elements, heat resistance and electrical property.
  3. Used for modifying agents for alkyd resin, urea formaldehyde resin and melamine resin, etc.
  4. Used for insecticides, sulfuration regulators, plasticisers, surfactants, textile tiding up penetrants, etc.
  Package: Packed in 25 kg polypropylene woven bags with polyethylene lining.
  Cautions: Store in cool, dry places and keep away from fire and moisture.
  Specification
  Appearance      white crystal
  Purity           ≥99%
  Melting Point    162-165^oC
  Chromaticity     ≤90# (APHA)         

  Structure
  
  

• Molecular Structure :