4097-32-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4097-32-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,0,9 and 7 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4097-32:
(6*4)+(5*0)+(4*9)+(3*7)+(2*3)+(1*2)=89
89 % 10 = 9
So 4097-32-9 is a valid CAS Registry Number.