Carfilzomib Impurity 4
[CAS# 1672698-96-2]

Identification

• Name: Carfilzomib Impurity 4
• Synonyms: N-Oxide Impurity; 4-({[(1S)-1-{[(1S)-3-methyl-1-{[(1S)-1-{[(2R)-4-methyl-1-[(2R)-2-methyloxiran-2-yl]-1-oxopentan-2-yl]carbamoyl}-2-phenylethyl]carbamoyl}butyl]carbamoyl}-3-phenylpropyl]carbamoyl}methyl)morpholin-4-ium-4-olate
• Molecular Formula: C₄₀H₅₇N₅O₈
• Molecular Weight: 735.91
• CAS Registry Number: 1672698-96-2
• SMILES: [O-][N+]1(CC(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C([C@@]2(OC2)C)=O)CC(C)C)=O)CC3=CC=CC=C3)=O)CC(C)C)=O)CCC4=CC=CC=C4)=O)CCOCC1

Safety Data

• Hazard Symbols: GHS07 Warning
• Hazard Statements: H302+H312+H332-H315-H319
• Precautionary Statements: P261-P271-P280-P302+P352-P305+P351+P338