83821-03-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83821-03-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,8,2 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 83821-03:
(7*8)+(6*3)+(5*8)+(4*2)+(3*1)+(2*0)+(1*3)=128
128 % 10 = 8
So 83821-03-8 is a valid CAS Registry Number.