258265-83-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 258265-83-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,8,2,6 and 5 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 258265-83:
(8*2)+(7*5)+(6*8)+(5*2)+(4*6)+(3*5)+(2*8)+(1*3)=167
167 % 10 = 7
So 258265-83-7 is a valid CAS Registry Number.
258265-83-7Relevant articles and documents
A new and general synthesis of chiral β-ketosulfoxides by reaction of (+)-(R)-methyl p-tolyl sulfoxide with nitriles
Vleggaar, Robert,Zeevaart, Jacob G.
, p. 9301 - 9303 (1999)
The nitrile functional group is efficiently transformed into the β-ketosulfoxide moiety by reaction with the anion formed from (+)-(R)-methyl p-tolyl sulfoxide and aqueous acidic work-up of the reaction.
