Upadacitinib Impurity 28
[CAS# 1428243-69-9]

Identification

• Name: Upadacitinib Impurity 28
• Synonyms: (3S,4R)-1-[(Benzyloxy)carbonyl]-4-ethyl-3-pyrrolidinecarboxylic acid
• Molecular Formula: C₁₅H₁₉NO₄
• Molecular Weight: 277.32
• CAS Registry Number: 1428243-69-9
• SMILES: CC[C@H]1CN(C[C@H]1C(O)=O)C(=O)OCC1C=CC=CC=1

Properties

• Density: 1.2±0.1 g/cm³, Calc.^*
• Index of Refraction: 1.553, Calc.^*
• Boiling Point: 443.9±45.0 °C (760 mmHg), Calc.^*
• Flash Point: 222.3±28.7 °C, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software.