CAS 194795-71-6 appears in our catalog under these names: rel-(3R,4S)-1-(tert-Butoxycarbonyl)-4-hydroxypiperidine-3-carboxylic acid, 95%, rac-(3S,4R)-1-(tert-butoxycarbonyl)-4-hydroxy-3-piperidinecarboxylic acid, 96%, 96%. Offered by: AmBeed, Chemat. Available pack sizes: 5g, 1g, 10g, 100mg, 250mg, 500mg.