1253423-97-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1253423-97-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,3,4,2 and 3 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1253423-97:
(9*1)+(8*2)+(7*5)+(6*3)+(5*4)+(4*2)+(3*3)+(2*9)+(1*7)=140
140 % 10 = 0
So 1253423-97-0 is a valid CAS Registry Number.
1253423-97-0Relevant articles and documents
Michael reaction of ketones and β-nitrostyrenes catalyzed by camphor-10-sulfonamide-based prolinamide
Rani, Rashmi,Peddinti, Rama Krishna
, p. 2487 - 2492 (2010)
Novel camphor sulfonamide based organocatalysts were evaluated for their catalytic activity in the Michael reaction of ketones with nitroolefins. Reaction of ketones with β-nitrostyrenes in the presence of 20 mol % organocatalyst 1a and benzoic acid under