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Emedastine Difumarate
C 17 H 26 N 4 O·2C 4 H 4 O 4 534.56
 1H-Benzimidazole, 1-(2-ethoxyethyl)-2-(hexahydro-4-methyl-1H-1,4-diazepin-1-yl)-, (E)-2-butenedioate (1:2).
 1-(2-Ethoxyethyl)-2-(hexahydro-4-methyl-1H-1,4-diazepin-1-yl)benzimidazole fumarate (1:2) [87233-62-3]

» Emedastine Difumarate contains not less than 98.5 percent and not more than 101.0 percent of C 17 H 26 N 4 O·2C 4 H 4 O 4 , calculated on the dried basis.

USP REFERENCE STANDARDS FOR PURCHASE

USP Emedastine Difumarate RS
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