158169-17-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158169-17-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,1,6 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 158169-17:
(8*1)+(7*5)+(6*8)+(5*1)+(4*6)+(3*9)+(2*1)+(1*7)=156
156 % 10 = 6
So 158169-17-6 is a valid CAS Registry Number.