RefMet Compound Details

MW structure	144276 (View MW Metabolite Database details)
RefMet name	Leupeptin
Systematic name	(2S)-2-acetamido-N-[(1S)-1-[(1-formyl-4-guanidino-butyl)carbamoyl]-3-methyl-butyl]-4-methyl-pentanamide
SMILES	CC(C)C[C@@H](C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(=N)N)C=O)NC(=O)C   Run Tanimoto similarity search (with similarity coefficient >=0.6)
Exact mass	442.290369 (neutral)	Calculate m/z: (Choose adduct) [M+H]+ [M+H-H2O]+ [M.]+ [M+2H]2+ [M+3H]3+ [M+4H]4+ [M+K]+ [M+2K]2+ [M+2K-H]+ [M+Na]+ [M+2Na]2+ [M+2Na-H]+ [M+Li]+ [M+2Li]2+ [M+NH4]+ [M.CH3]+ [M+Ag]+ [M+H+CH3OH]+ [M+H+CH3CN]+ [M+H+2CH3CN]+ [M+Na+CH3CN]+ [M.NaFormate+H]+ [M.NH4Formate+H]+ [M.TMSi]+ [M.tBuDMSi]+ [M+H-Hexose]+ [M+H-EtnP]+ [M+H-SerP]+ [M-H]- [M-H-H2O]- [M-CH3]- [M-2H]2- [M-3H]3- [M-4H]4- [M+Cl]- [M+OAc]- [M+Na-2H]- [M+K-2H]- [M.Formate]- [M.NaFormate-H]- [M.NH4Formate-H]- [M.F]- [M-H-Ser]- [M.HF2]- M(neutral)    View other RefMet entries with this exact (neutral) mass:   +/- 0.05 amu   +/- 0.1 amu   +/- 0.2 amu   +/- 0.5 amu
Formula	C20H38N6O5	View other entries in RefMet with this formula
InChI	InChI=1S/C20H38N6O5/c1-11(2)9-15(24-13(5)27)17(28)26-16(10-12(3)4)18(29)25-14(19(30)31)7-6-8-23-20(21)22/h11-12,14-16H,6-10H2,1-5H 3,(H,24,27)(H,25,29)(H,26,28)(H,30,31)(H4,21,22,23)/t14-,15-,16-/m0/s1
InChIKey	GDBQQVLCIARPGH-ULQDDVLXSA-N	View other enantiomers/diastereomers of this metabolite in RefMet
Super Class	Organic acids
Main Class	Amino acids and peptides
Sub Class	Tripeptides
Pubchem CID	72429
Annotation level	1   (1:Known structure; 2:Known regiochemistry; 3:Partial structure; 4:Sum-composition)