Supplier Page from Thermo Fisher Scientific for (1S,2R,3S,4S)-2,3-Dihydroxy-4-(hydroxymethyl)-1-aminocyclopentane hydrochloride, 95%, 98% ee
2-Ethylhexanoic acid, 99% from Thermo Fisher Scientific
Ethyl 2-bromoisobutyrate, 98% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific