97855-09-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97855-09-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,8,5 and 5 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 97855-09:
(7*9)+(6*7)+(5*8)+(4*5)+(3*5)+(2*0)+(1*9)=189
189 % 10 = 9
So 97855-09-9 is a valid CAS Registry Number.