CAS 713520-27-5 appears in our catalog under these names: Mono-t-butoxycarbonyl 1,5-diaminopentane toluenesulfonic acid salt, 98%, Mono-t-butoxycarbonyl 1,5-diaminopentane. Offered by: Combi-blocks, Sigma-Aldrich. Available pack sizes: 1g, 10g, 5g, -.