CAS 51154-06-4 appears in our catalog under these names: Boc–3,4–dehydro–Pro–OH, Boc-3,4-dehydroPro-OH, Boc-3,4-Dehydro-Pro-OH 98%, Boc-3,4-dehydro-L-proline, 98%, 98%, (S)-1-(tert-Butoxycarbonyl)-2,5-dihydro-1H-pyrrole-2-carboxylic acid, 95%. Offered by: GLPBio, Iris Biotech, Ambeed, Chemat, Fluorochem. Available pack sizes: 1g, 5g, 250mg, 10g, 25g, 100mg, 100g.