CAS No.: 56181-82-9 | C22H19BrO Registered in China

  • Name: Brodifacoum Stage 7 (last intermediate)
    Mol. Formula: C22H19BrO
    CAS No.: 56181-82-9
    EC No.: 260-038-0
    Purity of limited stock: ≥ 99.5%
  • IUPAC Name: 3-(4′-bromobiphenyl-4-yl)-1,2,3,4-tetrahydronaphthalen-1-ol
    China Reg. name: 3-(4′-bromo[1,1′-biphenyl]-4-yl)-1,2,3,4-tetrahydro-1-naphthol
    China’s Regulatory: MEP Directive No. 7/2010
    New Substances Registration No.: 2011009/MEP
    Registration Date at China MEP: 12. JAN, 2011

2010 Chinese REACH regulation

  • The Measures for Environmental Administration of New Chemical Substances” (China Ministry of Environmental Protection (MEP) Directive No.7,) was issued in Jan 2010 and went into effect on Oct 15, 2010. This regulation is similar to EU REACH and is also known as ‘‘Chinese REACH’’.
  • The rodenticide intermediates, C22H20O (stage 6 of Difenacoum synthesis) and C22H19BrO (stage 7 of Brodifacoum synthesis) manufactured by Siyang Rodenticide Factory passed the environmental and safety evaluation as new chemical substances on January 12, 2011 by the China REACH regulation.

Registered Brodifacoum intermediate: C22H19BrO

(the stage before synthesis with coumarin)
  • Siyang Rodenticide Factory is the only manufacturer of  C22H19BrO (CAS 56181-82-9), the intermediate of Brodifacoum registered under China REACH regulations.
  • As the unique manufacturer of “98% Brodifacoum” in China, the factory has stocked some intermediates of rodenticide with purity higher than 99% (Brodifacoum last step, C22H19BrO and Difenacoum last step, C22H20O) to meet future market demand.