97989-82-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97989-82-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,9,8 and 9 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 97989-82:
(7*9)+(6*7)+(5*9)+(4*8)+(3*9)+(2*8)+(1*2)=227
227 % 10 = 7
So 97989-82-7 is a valid CAS Registry Number.