161815-15-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161815-15-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,8,1 and 5 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 161815-15:
(8*1)+(7*6)+(6*1)+(5*8)+(4*1)+(3*5)+(2*1)+(1*5)=122
122 % 10 = 2
So 161815-15-2 is a valid CAS Registry Number.