4287-43-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4287-43-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,8 and 7 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 4287-43:
(6*4)+(5*2)+(4*8)+(3*7)+(2*4)+(1*3)=98
98 % 10 = 8
So 4287-43-8 is a valid CAS Registry Number.