28437-84-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28437-84-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,4,3 and 7 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 28437-84:
(7*2)+(6*8)+(5*4)+(4*3)+(3*7)+(2*8)+(1*4)=135
135 % 10 = 5
So 28437-84-5 is a valid CAS Registry Number.