149947-74-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 149947-74-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,9,4 and 7 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 149947-74:
(8*1)+(7*4)+(6*9)+(5*9)+(4*4)+(3*7)+(2*7)+(1*4)=190
190 % 10 = 0
So 149947-74-0 is a valid CAS Registry Number.
149947-74-0Relevant articles and documents
A facile and general method for the preparation of α-disulfones (R1SO2SO2R2)
Bartmann
, p. 490 - 496 (2007/10/02)
Dialkyl, diaryl and alkyl aryl disulfones are easily prepared by oxidation of N,N'-disulfonylhydrazines with nitric acid. The method is compatible with a wide variety of substituents (R1,R2) on the sulfur atoms.
