83930-04-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83930-04-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,9,3 and 0 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 83930-04:
(7*8)+(6*3)+(5*9)+(4*3)+(3*0)+(2*0)+(1*4)=135
135 % 10 = 5
So 83930-04-5 is a valid CAS Registry Number.