97712-89-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97712-89-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,7,1 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 97712-89:
(7*9)+(6*7)+(5*7)+(4*1)+(3*2)+(2*8)+(1*9)=175
175 % 10 = 5
So 97712-89-5 is a valid CAS Registry Number.