0

Two New Polymorphs of 4-(N,N-dimethylamino)benzoic Acid

Christer B Aakeröy, John Desper, Brock Levin

Acta Crystallogr C. 2005 Dec;61(Pt 12):o702-4.

PMID: 16330852

Abstract:

Two new polymorphs of 4-(N,N-dimethylamino)benzoic acid, C9H11NO2, resulting from the attempted cocrystallization in ethanol of 4-(N,N-dimethylamino)benzoic acid and a mixture of 3-(N,N-dimethylamino)benzoic acid and 3-(3-pyridyl)-2-pyridone producing one polymorph, and a mixture of 3-(N,N-dimethylamino)benzoic acid and 5-methoxy-3,3'-bipyridine producing the second polymorph, have been crystallographically characterized. The primary intermolecular O-H...O hydrogen bonds generate a dimeric acid-acid motif that is present in all three polymorphs.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP6929404 N-(+)-Biotinyl-4-aminobenzoic acid N-(+)-Biotinyl-4-aminobenzoic acid 6929-40-4 Price
qrcode