312617-71-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 312617-71-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,2,6,1 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 312617-71:
(8*3)+(7*1)+(6*2)+(5*6)+(4*1)+(3*7)+(2*7)+(1*1)=113
113 % 10 = 3
So 312617-71-3 is a valid CAS Registry Number.