Carfilzomib Impurity 42
[CAS 2177287-68-0]

Identification

• Name: Carfilzomib Impurity 42
• Synonyms: tert-butyl ((R)-4-methyl-1-((R)-2-methyloxiran-2-yl)-1-oxopentan-2-yl)carbamate
• Molecular Formula: C₁₄H₂₅NO₄
• Molecular Weight: 271.35
• CAS Registry Number: 2177287-68-0
• SMILES: CC(C)C[C@H](C(=O)[C@]1(CO1)C)NC(=O)OC(C)(C)C

Properties

• Density: 1.1±0.1 g/cm³, Calc.^*
• Index of Refraction: 1.472, Calc.^*
• Boiling Point: 369.8±37.0 °C (760 mmHg), Calc.^*
• Flash Point: 177.5±26.5 °C, Calc.^*

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

Safety Data

• Hazard Symbols: GHS07 Warning
• Risk Statements: H302-H315-H319-H335
• Safety Statements: P261-P305+P351+P338