438453-78-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 438453-78-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,8,4,5 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 438453-78:
(8*4)+(7*3)+(6*8)+(5*4)+(4*5)+(3*3)+(2*7)+(1*8)=172
172 % 10 = 2
So 438453-78-2 is a valid CAS Registry Number.