83101-17-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83101-17-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,1,0 and 1 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 83101-17:
(7*8)+(6*3)+(5*1)+(4*0)+(3*1)+(2*1)+(1*7)=91
91 % 10 = 1
So 83101-17-1 is a valid CAS Registry Number.