Leupeptin Hemisulfate Monohydrate
[CAS# 55123-66-5]

Identification

• Name: Leupeptin Hemisulfate Monohydrate
• Synonyms: (2S)-2-[[(2S)-2-Acetamido-4-Methyl-Pentanoyl]Amino]-N-[(1S)-1-Formyl-4-Guanidino-Butyl]-4-Methyl-Pentanamide; (2S)-2-[[(2S)-2-Acetamido-4-Methyl-1-Oxopentyl]Amino]-N-[(1S)-1-Formyl-4-Guanidinobutyl]-4-Methylpentanamide; (2S)-2-[[(2S)-2-Acetamido-4-Methyl-Pentanoyl]Amino]-N-[(1S)-1-Formyl-4-Guanidino-Butyl]-4-Methyl-Valeramide
• Molecular Formula: C₂₀H₃₈N₆O₄
• Molecular Weight: 426.56
• CAS Registry Number: 55123-66-5
• SMILES: [C@H](NC(=O)[C@@H](NC(=O)C)CC(C)C)(CC(C)C)C(=O)N[C@@H](CCCN=C(N)N)C=O
• InChI: 1S/C20H38N6O4/c1-12(2)9-16(24-14(5)28)19(30)26-17(10-13(3)4)18(29)25-15(11-27)7-6-8-23-20(21)22/h11-13,15-17H,6-10H2,1-5H3,(H,24,28)(H,25,29)(H,26,30)(H4,21,22,23)/t15-,16-,17-/m0/s1
• InChIKey: GDBQQVLCIARPGH-ULQDDVLXSA-N

Properties

• Density: 1.213g/cm³ (Cal.)
• solubility: Soluble to 10 mg/ml in water

References

• (1): Wang et al.. Beta-lactone probes identify a papain-like peptide ligase in Arabidopsis thaliana, Nature Chemical Biology, 2008