67471-20-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67471-20-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,4,7 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 67471-20:
(7*6)+(6*7)+(5*4)+(4*7)+(3*1)+(2*2)+(1*0)=139
139 % 10 = 9
So 67471-20-9 is a valid CAS Registry Number.
67471-20-9Relevant academic research and scientific papers
Fast and efficient synthesis of 14C labelled benzonitriles and their corresponding acids
Schou, Soren Christian
experimental part, p. 173 - 176 (2010/07/02)
14C-Anthranilic acid has been prepared in a fast and efficient way in a two-step reaction in 82% overall radiochemical yield. Thus, 2-iodoaniline was transformed into 2-amino-[7-14C]-benzonitrile using a palladium catalyzed cyanation
