438618-61-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 438618-61-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,8,6,1 and 8 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 438618-61:
(8*4)+(7*3)+(6*8)+(5*6)+(4*1)+(3*8)+(2*6)+(1*1)=172
172 % 10 = 2
So 438618-61-2 is a valid CAS Registry Number.