AMT-NHS is an RNA-protein crosslinker. AMT-NHS is composed of a psoralen derivative and an N-hydroxysuccinimide ester group which react with RNA bases and primary amines of protein, respectively. AMT-NHS can penetrate into living yeast cells and crosslink Cbf5 to H/ACA snoRNAs with high specificity. AMT-NHS induces different crosslinking patterns and targets both single- and double-stranded regions of RNA. AMT-NHS can be used for capturing diverse RNA-protein interactions in cells.