133857-71-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133857-71-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,8,5 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 133857-71:
(8*1)+(7*3)+(6*3)+(5*8)+(4*5)+(3*7)+(2*7)+(1*1)=143
143 % 10 = 3
So 133857-71-3 is a valid CAS Registry Number.
133857-71-3Relevant academic research and scientific papers
SODIUM BOROHYDRIDE REDUCTION OF AROMATIC SULFONYL AZIDES IN THE PRESENCE OR ABSENCE OF TELLURIUM
Obafemi, Craig. A.,Onigbinde, Adebayo O.
, p. 75 - 81 (2007/10/02)
Some aromatic sulfonyl azides have been reduced, in various solvents, with sodium borohydride, in the presence or absence of Te element to the corresponding sulfonamides.Other functionals groups like the imino group may also be reduced.
