Merck Patent Gmbh

Markus Ruettimann

Fritz Blatter

Rudolf Moser

Viola Groehn

Martin Szelagiewicz

Ruth Boehni Stamm

Giuseppe Lapadula

Crystalline monosodium salt of 5-methyl-(6S)-tetrahydrofolic acid wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid to sodium is from 1:0.5 to 1:1.5 (in mol/mol) and/or hydrates and/or solvates thereof, their use as pharmaceuticals, as well as processes of obtaining the same.

Crystalline monosodium salt of 5-methyl-(6S)-tetrahydrofolic acid

The present invention is directed to a crystalline sodium salt of 5-methyl-(6S)-tetrahydrofolic acid wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid to sodium is from 1:1.51 to 1:2.5 and/or hydrates and/or solvates thereof, as well as, a process of obtaining the same.

Crystalline sodium salt of 5-methyl-(6S)-tetrahydrofolic acid

The present invention is directed to a crystalline sodium salt of 5-methyl-(6S)-tetrahydrofolic acid wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid to sodium is from 1:0.5 to 1:1.5 (in mol/mol) and/or hydrates and/or solvates thereof, as well as, a processes of obtaining the same.

The present invention is directed to crystalline salt of 5-methyl-(6S)-tetrahydrofolic acid comprising

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