42140-62-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42140-62-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,1,4 and 0 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 42140-62:
(7*4)+(6*2)+(5*1)+(4*4)+(3*0)+(2*6)+(1*2)=75
75 % 10 = 5
So 42140-62-5 is a valid CAS Registry Number.