C22H20O, Difenacoum Intermediate 6

  • Difenacoum Stage 6 (the last intermediate)
    Mol. Formula: C22H20O
    CAS No.: 56181-66-9
    EC No.: 260-034-9
    Purity: ≥ 99.5%
  • IUPAC name: 3-[1,1′-biphenyl]-4-yl-1,2,3,4-tetrahydro-1-naphthol
    China Reg. name: 3-[1,1′-biphenyl]-4-yl-1,2,3,4-tetrahydro-1-naphthol
    China regulatory: 2010 China REACH
    MEP Approved No.: 2011009
    MEP Approved Date: 12. JAN, 2011

The only pre-approved Production of Difenacoum in China

  • What is currently the only Difenacoum production line in China was pre-approved by the relevant authority when the Siyang plant was expanded in 2004. As the only applicant to submit the Difenacoum registration dossier, Siyang Rodenticide Factory failed to pass ICAMA registration before the deadline for rodenticide manufacturing industry, under the 2005 National Industrial Policy.
  • According to the National Industrial Policy “Regulations on Promoting Industrial Structure Adjustment” withing the “Catalogue for Guiding Industry Restructuring (2005)” that came into effect on December 2, 2005, China has banned the production and manufacture of new rodenticides.
  • Base on the pre-approved Difenacoum manufacturing with environmental impact assessment and safety evaluation qulifications, Siyang Rodenticide Factory has produced some fixed Difenacoum Intermediate (the last stage, C22H20O) for export purpose. The current stock is limited and fully compliant with all regulations in China.