83117-01-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83117-01-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,1,1 and 7 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 83117-01:
(7*8)+(6*3)+(5*1)+(4*1)+(3*7)+(2*0)+(1*1)=105
105 % 10 = 5
So 83117-01-5 is a valid CAS Registry Number.