Ranitidine hydrochloride, a polymorphic crystal form.

Acta Crystallogr C

Department of Biochemistry, University of Toronto, Medical Sciences Building, Toronto, Canada M5S 1A8.

Published: August 2000

In the title compound, dimethyl(¿5-[2-(1-methylamino-2-nitroethenylamino)ethylthiometh yl]-2- furyl¿methyl)ammonium chloride, C(13)H(23)N(4)O(3)S(+).Cl(-), protonation occurs at the dimethylamino N atom. The ranitidine molecule adopts an eclipsed conformation. Bond lengths indicate extensive electron delocalization in the N,N'-dimethyl-2-nitro-1, 1-ethenediamine system of the molecule. The nitro and methylamino groups are trans across the side chain C=C double bond, while the ethylamino and nitro groups are cis. The Cl(-) ions link molecules through hydrogen bonds.

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http://dx.doi.org/10.1107/s010827010000785xDOI Listing

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