312920-65-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 312920-65-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,2,9,2 and 0 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 312920-65:
(8*3)+(7*1)+(6*2)+(5*9)+(4*2)+(3*0)+(2*6)+(1*5)=113
113 % 10 = 3
So 312920-65-3 is a valid CAS Registry Number.