717830-72-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 717830-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,1,7,8,3 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 717830-72:
(8*7)+(7*1)+(6*7)+(5*8)+(4*3)+(3*0)+(2*7)+(1*2)=173
173 % 10 = 3
So 717830-72-3 is a valid CAS Registry Number.