37839-20-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 37839-20-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,7,8,3 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 37839-20:
(7*3)+(6*7)+(5*8)+(4*3)+(3*9)+(2*2)+(1*0)=146
146 % 10 = 6
So 37839-20-6 is a valid CAS Registry Number.