7242-50-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7242-50-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,4 and 2 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 7242-50:
(6*7)+(5*2)+(4*4)+(3*2)+(2*5)+(1*0)=84
84 % 10 = 4
So 7242-50-4 is a valid CAS Registry Number.