57991-99-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57991-99-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,9,9 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 57991-99:
(7*5)+(6*7)+(5*9)+(4*9)+(3*1)+(2*9)+(1*9)=188
188 % 10 = 8
So 57991-99-8 is a valid CAS Registry Number.
57991-99-8Relevant academic research and scientific papers
A novel route for the synthesis of unsaturated oxo sulfones and bissulfones
Reddy, D. Bhaskar,Babu, N. Chandrasekhar,Padmavathi,Sumathi
, p. 491 - 494 (2007/10/03)
The reaction between vinyl chloride and aroyl/arylsulfonyl chloride under Friedel-Craft's reaction conditions was the basis for the synthesis of unsaturated oxo sulfones and bissulfones.
