477724-17-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 477724-17-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,7,7,7,2 and 4 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 477724-17:
(8*4)+(7*7)+(6*7)+(5*7)+(4*2)+(3*4)+(2*1)+(1*7)=187
187 % 10 = 7
So 477724-17-7 is a valid CAS Registry Number.