42945-97-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42945-97-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,9,4 and 5 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 42945-97:
(7*4)+(6*2)+(5*9)+(4*4)+(3*5)+(2*9)+(1*7)=141
141 % 10 = 1
So 42945-97-1 is a valid CAS Registry Number.