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Chemical Name: Zafirlukast Impurity 1
Synonym: Zafirlukast Impurity D; cyclopentyl N-[3-[[5-(cyclopentyloxycarbonylamino)-1-methylindol-3-yl]-[2-methoxy-4-[(2-methylphenyl)sulfonylcarbamoyl]phenyl]methyl]-1-methylindol-5-yl]carbamate "| Enter Batch Number | |||