Crystalline salt comprising 5-methyl-(6S)-tetrahydrofolic acid and 4-(2-hydroxyethyl)-morpholine
AssigneeMerck Patent GmbH
InventorsRudolf Moser, Viola Groehn, Ruth Boehni Stamm, Fritz Blatter, Martin Szelagiewicz
Life of this patent
Estimating the term…
Abstract
The present invention refers to a crystalline salt comprising 5-methyl-(6S)-tetrahydrofolic acid and 4-(2-hydroxyethyl)-morpholine wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid to 4-(2-hydroxyethyl)-morpholine is from 1:0.3 to 1:2.0 (in mol/mol) and/or hydrates and/or solvates thereof as well as to a process of obtaining the same.
Claims17
A crystalline salt comprising 5-methyl-(6S)-tetrahydrofolic acid and 4-(2-hydroxyethyl)-morpholine wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid to 4-(2-hydroxyethyl)-morpholine is in the range of 1:0.3 to 1:2.0 (in mol/mol) or a hydrate or solvate thereof.
Dependencies are inferred from the claim text.