77147-85-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77147-85-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,4 and 7 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 77147-85:
(7*7)+(6*7)+(5*1)+(4*4)+(3*7)+(2*8)+(1*5)=154
154 % 10 = 4
So 77147-85-4 is a valid CAS Registry Number.