77967-61-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77967-61-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,9,6 and 7 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 77967-61:
(7*7)+(6*7)+(5*9)+(4*6)+(3*7)+(2*6)+(1*1)=194
194 % 10 = 4
So 77967-61-4 is a valid CAS Registry Number.