97420-74-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97420-74-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,4,2 and 0 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 97420-74:
(7*9)+(6*7)+(5*4)+(4*2)+(3*0)+(2*7)+(1*4)=151
151 % 10 = 1
So 97420-74-1 is a valid CAS Registry Number.