163231-16-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 163231-16-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,3,2,3 and 1 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 163231-16:
(8*1)+(7*6)+(6*3)+(5*2)+(4*3)+(3*1)+(2*1)+(1*6)=101
101 % 10 = 1
So 163231-16-1 is a valid CAS Registry Number.