716840-32-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 716840-32-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,1,6,8,4 and 0 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 716840-32:
(8*7)+(7*1)+(6*6)+(5*8)+(4*4)+(3*0)+(2*3)+(1*2)=163
163 % 10 = 3
So 716840-32-3 is a valid CAS Registry Number.