1239319-81-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1239319-81-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,9,3,1 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1239319-81:
(9*1)+(8*2)+(7*3)+(6*9)+(5*3)+(4*1)+(3*9)+(2*8)+(1*1)=163
163 % 10 = 3
So 1239319-81-3 is a valid CAS Registry Number.