110921-55-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 110921-55-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,0,9,2 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 110921-55:
(8*1)+(7*1)+(6*0)+(5*9)+(4*2)+(3*1)+(2*5)+(1*5)=86
86 % 10 = 6
So 110921-55-6 is a valid CAS Registry Number.
110921-55-6Relevant articles and documents
Efficient conversion of sulfones into β-keto sulfones by N-acylbenzotriazoles
Katritzky, Alan R.,Abdel-Fattah, Ashraf A. A.,Wang, Mingyi
, p. 1443 - 1446 (2003)
Acyclic sulfones 4a-f and alicyclic sulfone 7 react with readily available N-acylbenzotriazoles 3a-g (derived from aliphatic, aromatic, and heteroaromatic carboxylic acids) to provide the corresponding β-keto sulfones 5a-n and 8a-c, respectively, in good
