89730-97-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89730-97-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,7,3 and 0 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 89730-97:
(7*8)+(6*9)+(5*7)+(4*3)+(3*0)+(2*9)+(1*7)=182
182 % 10 = 2
So 89730-97-2 is a valid CAS Registry Number.