4250-53-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4250-53-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,5 and 0 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 4250-53:
(6*4)+(5*2)+(4*5)+(3*0)+(2*5)+(1*3)=67
67 % 10 = 7
So 4250-53-7 is a valid CAS Registry Number.