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Avermectin A1a, 25-cyclohexyl-4-O-de(2,6-dideoxy-3-O-methyl-alpha.-L-arabino-hexopyranosyl)-5-demethoxy-25-de(1-methylpropyl)-22,23-dihydro-5-(hydroxyimino)-

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Sarafloxacin hydrochloride

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Difloxacin hydrochloride

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polymyxin B

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sodium N-(6-chloropyridazin-3-yl)sulphanilamidate

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3,6-Dichloropyridazine

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sulfachloropyridazine

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