97938-42-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97938-42-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,9,3 and 8 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 97938-42:
(7*9)+(6*7)+(5*9)+(4*3)+(3*8)+(2*4)+(1*2)=196
196 % 10 = 6
So 97938-42-6 is a valid CAS Registry Number.