428487-90-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 428487-90-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,8,4,8 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 428487-90:
(8*4)+(7*2)+(6*8)+(5*4)+(4*8)+(3*7)+(2*9)+(1*0)=185
185 % 10 = 5
So 428487-90-5 is a valid CAS Registry Number.