128143-46-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128143-46-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,1,4 and 3 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 128143-46:
(8*1)+(7*2)+(6*8)+(5*1)+(4*4)+(3*3)+(2*4)+(1*6)=114
114 % 10 = 4
So 128143-46-4 is a valid CAS Registry Number.