287400-50-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 287400-50-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,7,4,0 and 0 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 287400-50:
(8*2)+(7*8)+(6*7)+(5*4)+(4*0)+(3*0)+(2*5)+(1*0)=144
144 % 10 = 4
So 287400-50-4 is a valid CAS Registry Number.