638174-07-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 638174-07-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,8,1,7 and 4 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 638174-07:
(8*6)+(7*3)+(6*8)+(5*1)+(4*7)+(3*4)+(2*0)+(1*7)=169
169 % 10 = 9
So 638174-07-9 is a valid CAS Registry Number.