156660-45-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156660-45-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,6,6 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 156660-45:
(8*1)+(7*5)+(6*6)+(5*6)+(4*6)+(3*0)+(2*4)+(1*5)=146
146 % 10 = 6
So 156660-45-6 is a valid CAS Registry Number.