638163-00-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 638163-00-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,8,1,6 and 3 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 638163-00:
(8*6)+(7*3)+(6*8)+(5*1)+(4*6)+(3*3)+(2*0)+(1*0)=155
155 % 10 = 5
So 638163-00-5 is a valid CAS Registry Number.