Polymorphic crystal of 4'-{2-[ (1s, 2r) - 2- hydroxy -2- (4-hydroxyphenyl) -1- methylethylamino] ethoxy} - 3 - isopropyl-3', 5' -dimethylbiphenyl - 4 - carboxylic acid hydrochloride

Abstract

Crystals of a salt of 4′-{2-[(1S,2R)-2-hydroxy-2-(4-hydroxyphenyl)-1-methylethylamino]ethoxy}-3-isopropyl-3′, 5′-dimethylbiphenyl-4-carboxylic acid. The α type, β type and γ type crystals produced by treating hydrochloride of 4′-{2-[(1S,2R)-2-hydroxy-2-(4-hydroxyphenyl)-1-methylethyl-amino]ethoxy}-3-isopropyl-3′,5′-dimethylbiphenyl-4-carboxylic acid with specified solvents, which can be discriminated by the characteristic diffraction peaks of powder X-ray diffractometry and the like.

Dependencies are inferred from the claim text.