TCI C1398 4-Cyanobenzyl Bromide (CAS 17201-43-3) is a reactive benzylating agent bearing a para-cyano substituent. The benzylic bromide alkylates nitrogen heterocycles, phenols, and stabilised carbanions under mild conditions, while the nitrile group can later be converted into carboxylic acids, benzylamines, amidines, or tetrazoles. This combination makes the 4-cyanobenzyl fragment a recurring motif in pharmaceutical intermediates and enzyme inhibitor research. AMI Scientific supplies 25 g and 250 g packs; as a lachrymatory benzyl halide, it should always be weighed and transferred inside a fume hood.
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