A compound which is 6-chloro-7-(4-(4-chloro-2-methoxyphenethylcarbamoyl)-phenoxy)chroman-4-carboxylic acid, or a pharmaceutically acceptable salt thereof. Said compound is either a racemic mixture or a single enantiomer, preferably Enantiomer 2 of 6-chloro-7-(4-(4-chloro-2-methoxyphenethylcarbamoyl)phenoxy)chroman-4-carboxylic acid, or a pharmaceutically acceptable salt thereof, in particular its sodium salt. Said compound for use in treating an immunologic disorder in a mammal.
