861721-55-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 861721-55-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,7,2 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 861721-55:
(8*8)+(7*6)+(6*1)+(5*7)+(4*2)+(3*1)+(2*5)+(1*5)=173
173 % 10 = 3
So 861721-55-3 is a valid CAS Registry Number.
861721-55-3Relevant articles and documents
Nucleophilic difluoromethylation of carbonyl compounds using TMSCF 2SO2Ph and Mg0-mediated desulfonylation
Ni, Chuanfa,Hu, Jinbo
, p. 8273 - 8277 (2005)
A new nucleophilic difluoromethylation chemistry using fluoride-induced (phenylsulfonyl)difluoromethylation with TMSCF2SO2Ph followed by the magnesium-metal-mediated desulfonylation has been achieved. This methodology is compatible w
