1103499-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1103499-89-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,0,3,4,9 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1103499-89:
(9*1)+(8*1)+(7*0)+(6*3)+(5*4)+(4*9)+(3*9)+(2*8)+(1*9)=143
143 % 10 = 3
So 1103499-89-3 is a valid CAS Registry Number.