CAS 22735-07-5 appears in our catalog under these names: (H–Cys–OEt)₂ · 2 HCl, (H-Cys-OEt)2 dihydrochloride, 95%, (H-Cys-OEt)2.2HCl 95%, L-Cystine bis(ethyl ester) dihydrochloride, 95%, 95%, [(2R)-3-[[(2R)-2-Azaniumyl-3-ethoxy-3-oxopropyl]disulfanyl]-1-ethoxy-1-oxopropan-2-yl]azanium,dichloride, 95%. Offered by: GLPBio, Combi-blocks, Ambeed, Chemat, Fluorochem. Available pack sizes: 5g, 1g, 25g, 100g.