163932-31-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 163932-31-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,3,9,3 and 2 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 163932-31:
(8*1)+(7*6)+(6*3)+(5*9)+(4*3)+(3*2)+(2*3)+(1*1)=138
138 % 10 = 8
So 163932-31-8 is a valid CAS Registry Number.