66455-13-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66455-13-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,4,5 and 5 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 66455-13:
(7*6)+(6*6)+(5*4)+(4*5)+(3*5)+(2*1)+(1*3)=138
138 % 10 = 8
So 66455-13-8 is a valid CAS Registry Number.