97942-17-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97942-17-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,9,4 and 2 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 97942-17:
(7*9)+(6*7)+(5*9)+(4*4)+(3*2)+(2*1)+(1*7)=181
181 % 10 = 1
So 97942-17-1 is a valid CAS Registry Number.