77320-67-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77320-67-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,3,2 and 0 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 77320-67:
(7*7)+(6*7)+(5*3)+(4*2)+(3*0)+(2*6)+(1*7)=133
133 % 10 = 3
So 77320-67-3 is a valid CAS Registry Number.