1413439-81-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1413439-81-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,1,3,4,3 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1413439-81:
(9*1)+(8*4)+(7*1)+(6*3)+(5*4)+(4*3)+(3*9)+(2*8)+(1*1)=142
142 % 10 = 2
So 1413439-81-2 is a valid CAS Registry Number.