137213-75-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137213-75-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,2,1 and 3 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 137213-75:
(8*1)+(7*3)+(6*7)+(5*2)+(4*1)+(3*3)+(2*7)+(1*5)=113
113 % 10 = 3
So 137213-75-3 is a valid CAS Registry Number.
137213-75-3Relevant academic research and scientific papers
Synthesis of N-substituted benzimidazole-2-thiones
Doerge,Cooray
, p. 1789 - 1795 (2007/10/02)
General methods were developed for N-substitution of benzimidazoline-2-thione with alkyl, alkenyl, alkynyl and acyl groups using S-tritylation as a protecting reaction.
