CAS # 1117321-94-6 MDL No.: MFCD02682592 Melting Point: 188-194 ºC Molecular Formula: C25H23NO5 Molecular Weight: 417.45 Optical Rotation: [a]D25 = +28 ± 2º (C=1 in DMF) Purity Limit: 98% (HPLC) Storage Temp: Store at 0-8 °C Appearance: White powder

Synonyms: Fmoc-(2S,4R)-?-benzylproline MDL No.: MFCD04115782 Molecular Formula: C27H25NO4 Molecular Weight: 427.5 Optical Rotation: [a]D = -22 ± 2º (C=1 in CHCl3) Purity Limit: 99% (HPLC) Storage Temp: Store at 0-8°C Appearance: White powder

Synonyms: Fmoc-trans-DL-ß-Pro-4-(phenyl)-OH MDL No.: MFCD09952615 Melting Point: 202-210 °C Molecular Formula: C26H23NO4 Molecular Weight: 413.47 Purity Limit: 99% (HPLC) Storage Temp: Store at 0-8°C Appearance: White powder

Synonyms: cis-3-Boc-aminocyclobutanecarboxylic acid Purity Limit: ≥ 97% (GC) CAS No.: 1008773-79-2 Molecular Formula: C10H17NO4 Molecular Weight: 215.25 MDL No.: MFCD06657680 Appearance: White solid Storage Temperature: Store at 0-8°C

Purity Limit: ≥ 95% (HPLC) CAS No.: 361161-57-1 Molecular Formula: C22H25NO5 Molecular Weight: 277.36 MDL No.: MFCD04974449 Appearance: White powder Melting Point: Not well defined Optical Rotation: [a]D25 = -11 ± 2º (C=1, in DMF) Storage Temperature: Store at 0-8°C

Purity Limit: ≥ 99% (HPLC) CAS No.: 282524-99-6 Molecular Formula: C22H23NO4 Molecular Weight: 365.43 MDL No.: MFCD02258134 Appearance: White powder Storage Temperature: Store at 0-8 °C

Purity Limit: ≥ 97% (HPLC) Molecular Formula: C28H27NO4 Molecular Weight: 441.53 MDL No.: MFCD26793615 Appearance: White powder Optical Rotation: [a]D20 = -13 ± 2º (C=1 in DMF) Storage Temperature: Store at 0-8 °C