143972-34-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143972-34-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,9,7 and 2 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 143972-34:
(8*1)+(7*4)+(6*3)+(5*9)+(4*7)+(3*2)+(2*3)+(1*4)=143
143 % 10 = 3
So 143972-34-3 is a valid CAS Registry Number.