143422-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143422-89-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,4,2 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 143422-89:
(8*1)+(7*4)+(6*3)+(5*4)+(4*2)+(3*2)+(2*8)+(1*9)=113
113 % 10 = 3
So 143422-89-3 is a valid CAS Registry Number.