42997-96-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42997-96-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,9,9 and 7 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 42997-96:
(7*4)+(6*2)+(5*9)+(4*9)+(3*7)+(2*9)+(1*6)=166
166 % 10 = 6
So 42997-96-6 is a valid CAS Registry Number.