You are here: Home >Extracts> Reference Standards > 4'-[(2-Butyl-4-oxo-1,3-diazaspiro[4.4]non-1-en-3-yl)methyl]-[1,1'-Biphenyl]-2-carbonitrile(2.5g/vial)
A butyldiazaspirononenone derivative used in the preparation of acetylcholinesterase inhibitors. An impurity found in Irbesartan (I751000).
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