316809-50-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 316809-50-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,6,8,0 and 9 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 316809-50:
(8*3)+(7*1)+(6*6)+(5*8)+(4*0)+(3*9)+(2*5)+(1*0)=144
144 % 10 = 4
So 316809-50-4 is a valid CAS Registry Number.