77761-27-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77761-27-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,6 and 1 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 77761-27:
(7*7)+(6*7)+(5*7)+(4*6)+(3*1)+(2*2)+(1*7)=164
164 % 10 = 4
So 77761-27-4 is a valid CAS Registry Number.