163808-10-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 163808-10-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,3,8,0 and 8 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 163808-10:
(8*1)+(7*6)+(6*3)+(5*8)+(4*0)+(3*8)+(2*1)+(1*0)=134
134 % 10 = 4
So 163808-10-4 is a valid CAS Registry Number.