66820-99-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66820-99-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,8,2 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 66820-99:
(7*6)+(6*6)+(5*8)+(4*2)+(3*0)+(2*9)+(1*9)=153
153 % 10 = 3
So 66820-99-3 is a valid CAS Registry Number.
66820-99-3Relevant articles and documents
Directed Metalation of Benzenesulfinamides. A Novel Route to Meta-Substituted Aromatic Compounds
Katritzky, Alan R.,Lue, Ping
, p. 74 - 78 (2007/10/02)
Directed lithiation ortho to the sulfinamide group of readily available ortho- and para-substituted N-phenylbenzenesulfinamides (5a-d) and reaction with a variety of electrophiles followed by mercuridesulfination (HgCl2) or dehydrodesulfination (Ra/Ni) co
