77445-03-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77445-03-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,4,4 and 5 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77445-03:
(7*7)+(6*7)+(5*4)+(4*4)+(3*5)+(2*0)+(1*3)=145
145 % 10 = 5
So 77445-03-5 is a valid CAS Registry Number.