158818-83-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158818-83-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,8,1 and 8 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 158818-83:
(8*1)+(7*5)+(6*8)+(5*8)+(4*1)+(3*8)+(2*8)+(1*3)=178
178 % 10 = 8
So 158818-83-8 is a valid CAS Registry Number.