1443-89-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1443-89-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,4,4 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1443-89:
(6*1)+(5*4)+(4*4)+(3*3)+(2*8)+(1*9)=76
76 % 10 = 6
So 1443-89-6 is a valid CAS Registry Number.