158168-39-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158168-39-9 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 8 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 158168-39:
(8*1)+(7*5)+(6*8)+(5*1)+(4*6)+(3*8)+(2*3)+(1*9)=159
159 % 10 = 9
So 158168-39-9 is a valid CAS Registry Number.