613657-34-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 613657-34-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,1,3,6,5 and 7 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 613657-34:
(8*6)+(7*1)+(6*3)+(5*6)+(4*5)+(3*7)+(2*3)+(1*4)=154
154 % 10 = 4
So 613657-34-4 is a valid CAS Registry Number.