77120-56-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77120-56-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,2 and 0 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77120-56:
(7*7)+(6*7)+(5*1)+(4*2)+(3*0)+(2*5)+(1*6)=120
120 % 10 = 0
So 77120-56-0 is a valid CAS Registry Number.