CAS 66471-20-3 appears in our catalog under these names: Bestim/ 99.76% (existing batch purity), H–Glu(Trp–OH)–OH, H-Glu(Trp-OH)-OH, L-γ-Glutamyl-L-tryptophan, ≥99%, ≥99%, Bestim, 98.73%. Offered by: TargetMol, GLPBio, Biosynth, Chemat, MedChemExpress. Available pack sizes: 1mg, 2mg, 5mg, 10mg, 25mg, 50mg, 100mg, 200mg.