CAS 158798-83-5 appears in our catalog under these names: Carbamic acid, n-[(1s)-1-[[[(1s)-1-[(ethylamino)carbonyl]propyl]amino]carbonyl]-3-methylbutyl]-, phenylmethyl ester, 95%, AK 275. Offered by: Combi-blocks, MedChemExpress. Available pack sizes: 500mg, Get quote.