83202-21-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83202-21-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,2,0 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 83202-21:
(7*8)+(6*3)+(5*2)+(4*0)+(3*2)+(2*2)+(1*1)=95
95 % 10 = 5
So 83202-21-5 is a valid CAS Registry Number.