4143-12-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4143-12-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,1,4 and 3 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4143-12:
(6*4)+(5*1)+(4*4)+(3*3)+(2*1)+(1*2)=58
58 % 10 = 8
So 4143-12-8 is a valid CAS Registry Number.