455-77-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 455-77-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,5 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 455-77:
(5*4)+(4*5)+(3*5)+(2*7)+(1*7)=76
76 % 10 = 6
So 455-77-6 is a valid CAS Registry Number.