143932-81-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143932-81-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,9,3 and 2 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 143932-81:
(8*1)+(7*4)+(6*3)+(5*9)+(4*3)+(3*2)+(2*8)+(1*1)=134
134 % 10 = 4
So 143932-81-4 is a valid CAS Registry Number.