662155-45-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 662155-45-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,2,1,5 and 5 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 662155-45:
(8*6)+(7*6)+(6*2)+(5*1)+(4*5)+(3*5)+(2*4)+(1*5)=155
155 % 10 = 5
So 662155-45-5 is a valid CAS Registry Number.