77748-80-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77748-80-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,4 and 8 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 77748-80:
(7*7)+(6*7)+(5*7)+(4*4)+(3*8)+(2*8)+(1*0)=182
182 % 10 = 2
So 77748-80-2 is a valid CAS Registry Number.