(4S)-4-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-acetamido-3-phenylpropanoyl]amino]-5-amino-5-oxopentanoyl]amino]-3-hydroxypropanoyl]amino]-6-aminohexanoyl]amino]acetyl]amino]-4-amino-4-oxobutanoyl]amino]-3-methylbutanoyl]amino]-3-phenylpropanoyl]amino]-3-methylbutanoyl]amino]-3-carboxypropanoyl]amino]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-phenylpropanoyl]amino]-5-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-1,6-diamino-1-oxohexan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxopentan-2-yl]amino]-5-oxopentanoic acid

C108H164N30O28 — CID 134149406

About (4S)-4-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-acetamido-3-phenylpropanoyl]amino]-5-amino-5-oxopentanoyl]amino]-3-hydroxypropanoyl]amino]-6-aminohexanoyl]amino]acetyl]amino]-4-amino-4-oxobutanoyl]amino]-3-methylbutanoyl]amino]-3-phenylpropanoyl]amino]-3-methylbutanoyl]amino]-3-carboxypropanoyl]amino]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-phenylpropanoyl]amino]-5-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-1,6-diamino-1-oxohexan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxopentan-2-yl]amino]-5-oxopentanoic acid

(4S)-4-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-acetamido-3-phenylpropanoyl]amino]-5-amino-5-oxopentanoyl]amino]-3-hydroxypropanoyl]amino]-6-aminohexanoyl]amino]acetyl]amino]-4-amino-4-oxobutanoyl]amino]-3-methylbutanoyl]amino]-3-phenylpropanoyl]amino]-3-methylbutanoyl]amino]-3-carboxypropanoyl]amino]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-phenylpropanoyl]amino]-5-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-1,6-diamino-1-oxohexan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxopentan-2-yl]amino]-5-oxopentanoic acid (PubChem CID 134149406) has the molecular formula C108H164N30O28 and a molecular weight of 2330.68 g/mol. Its IUPAC name is (4S)-4-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-acetamido-3-phenylpropanoyl]amino]-5-amino-5-oxopentanoyl]amino]-3-hydroxypropanoyl]amino]-6-aminohexanoyl]amino]acetyl]amino]-4-amino-4-oxobutanoyl]amino]-3-methylbutanoyl]amino]-3-phenylpropanoyl]amino]-3-methylbutanoyl]amino]-3-carboxypropanoyl]amino]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-phenylpropanoyl]amino]-5-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-1,6-diamino-1-oxohexan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxopentan-2-yl]amino]-5-oxopentanoic acid.

Molecular Properties

• Compound Name: (4S)-4-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-acetamido-3-phenylpropanoyl]amino]-5-amino-5-oxopentanoyl]amino]-3-hydroxypropanoyl]amino]-6-aminohexanoyl]amino]acetyl]amino]-4-amino-4-oxobutanoyl]amino]-3-methylbutanoyl]amino]-3-phenylpropanoyl]amino]-3-methylbutanoyl]amino]-3-carboxypropanoyl]amino]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-phenylpropanoyl]amino]-5-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-1,6-diamino-1-oxohexan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxopentan-2-yl]amino]-5-oxopentanoic acid
• PubChem CID: 134149406
• Molecular Formula: C108H164N30O28
• Molecular Weight: 2330.68 g/mol
• Exact Mass: 2329.23
• IUPAC Name: (4S)-4-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-acetamido-3-phenylpropanoyl]amino]-5-amino-5-oxopentanoyl]amino]-3-hydroxypropanoyl]amino]-6-aminohexanoyl]amino]acetyl]amino]-4-amino-4-oxobutanoyl]amino]-3-methylbutanoyl]amino]-3-phenylpropanoyl]amino]-3-methylbutanoyl]amino]-3-carboxypropanoyl]amino]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-phenylpropanoyl]amino]-5-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-1,6-diamino-1-oxohexan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxopentan-2-yl]amino]-5-oxopentanoic acid
• SMILES: [H]/N=C(\N)NCCC[C@H](NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](Cc1ccccc1)NC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)CNC(=O)[C@H](CC(=O)O)NC(=O)[C@@H](NC(=O)[C@H](Cc1ccccc1)NC(=O)[C@@H](NC(=O)[C@H](CC(N)=O)NC(=O)CNC(=O)[C@H](CCCCN)NC(=O)[C@H](CO)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](Cc1ccccc1)NC(C)=O)C(C)C)C(C)C)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCN/C(N)=N/[H])C(=O)N[C@H](C(=O)N[C@@H](CCCCN)C(N)=O)C(C)C
• InChI: InChI=1S/C108H164N30O28/c1-57(2)47-73(97(157)128-70(34-24-46-119-108(116)117)96(156)136-87(58(3)4)104(164)125-67(90(113)150)31-19-21-43-109)131-93(153)69(33-23-45-118-107(114)115)127-94(154)72(40-42-85(146)147)130-100(160)76(49-63-27-15-11-16-28-63)132-99(159)75(51-65-35-37-66(141)38-36-65)123-83(144)55-121-92(152)79(53-86(148)149)134-106(166)89(60(7)8)137-101(161)77(50-64-29-17-12-18-30-64)133-105(165)88(59(5)6)138-102(162)78(52-82(112)143)124-84(145)54-120-91(151)68(32-20-22-44-110)126-103(163)80(56-139)135-95(155)71(39-41-81(111)142)129-98(158)74(122-61(9)140)48-62-25-13-10-14-26-62/h10-18,25-30,35-38,57-60,67-80,87-89,139,141H,19-24,31-34,39-56,109-110H2,1-9H3,(H2,111,142)(H2,112,143)(H2,113,150)(H,120,151)(H,121,152)(H,122,140)(H,123,144)(H,124,145)(H,125,164)(H,126,163)(H,127,154)(H,128,157)(H,129,158)(H,130,160)(H,131,153)(H,132,159)(H,133,165)(H,134,166)(H,135,155)(H,136,156)(H,137,161)(H,138,162)(H,146,147)(H,148,149)(H4,114,115,118)(H4,116,117,119)/t67-,68-,69-,70-,71-,72-,73-,74-,75-,76-,77-,78-,79-,80-,87-,88-,89-/m0/s1
• InChIKey: SAMNVGAOIFZWAM-XPXQQXPPSA-N
• XLogP: -8.09
• TPSA: 973.07 Ų
• H-Bond Donors: 34
• H-Bond Acceptors: 30
• Rotatable Bonds: 78
• Heavy Atoms: 166
• Complexity: —

Lipinski Rule of Five

3 violations

Rule	Value
MW ≤ 500	2330.68
LogP ≤ 5	-8.09
H-Bond Donors ≤ 5	34
H-Bond Acceptors ≤ 10	30

Computed Properties (RDKit)

• Structural Alerts: {'alert_name': 'Aliphatic_long_chain', 'substructure': 'N/A'}, {'alert_name': 'imine_1', 'substructure': 'N/A'}, {'alert_name': 'imine_2', 'substructure': 'N/A'}

Frequently Asked Questions

What is the IUPAC name of (4S)-4-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-acetamido-3-phenylpropanoyl]amino]-5-amino-5-oxopentanoyl]amino]-3-hydroxypropanoyl]amino]-6-aminohexanoyl]amino]acetyl]amino]-4-amino-4-oxobutanoyl]amino]-3-methylbutanoyl]amino]-3-phenylpropanoyl]amino]-3-methylbutanoyl]amino]-3-carboxypropanoyl]amino]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-phenylpropanoyl]amino]-5-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-1,6-diamino-1-oxohexan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxopentan-2-yl]amino]-5-oxopentanoic acid?

The IUPAC name of (4S)-4-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-acetamido-3-phenylpropanoyl]amino]-5-amino-5-oxopentanoyl]amino]-3-hydroxypropanoyl]amino]-6-aminohexanoyl]amino]acetyl]amino]-4-amino-4-oxobutanoyl]amino]-3-methylbutanoyl]amino]-3-phenylpropanoyl]amino]-3-methylbutanoyl]amino]-3-carboxypropanoyl]amino]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-phenylpropanoyl]amino]-5-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-1,6-diamino-1-oxohexan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxopentan-2-yl]amino]-5-oxopentanoic acid (CID 134149406) is (4S)-4-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-acetamido-3-phenylpropanoyl]amino]-5-amino-5-oxopentanoyl]amino]-3-hydroxypropanoyl]amino]-6-aminohexanoyl]amino]acetyl]amino]-4-amino-4-oxobutanoyl]amino]-3-methylbutanoyl]amino]-3-phenylpropanoyl]amino]-3-methylbutanoyl]amino]-3-carboxypropanoyl]amino]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-phenylpropanoyl]amino]-5-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-1,6-diamino-1-oxohexan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxopentan-2-yl]amino]-5-oxopentanoic acid.

What is the SMILES notation for (4S)-4-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-acetamido-3-phenylpropanoyl]amino]-5-amino-5-oxopentanoyl]amino]-3-hydroxypropanoyl]amino]-6-aminohexanoyl]amino]acetyl]amino]-4-amino-4-oxobutanoyl]amino]-3-methylbutanoyl]amino]-3-phenylpropanoyl]amino]-3-methylbutanoyl]amino]-3-carboxypropanoyl]amino]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-phenylpropanoyl]amino]-5-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-1,6-diamino-1-oxohexan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxopentan-2-yl]amino]-5-oxopentanoic acid?

The canonical SMILES for (4S)-4-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-acetamido-3-phenylpropanoyl]amino]-5-amino-5-oxopentanoyl]amino]-3-hydroxypropanoyl]amino]-6-aminohexanoyl]amino]acetyl]amino]-4-amino-4-oxobutanoyl]amino]-3-methylbutanoyl]amino]-3-phenylpropanoyl]amino]-3-methylbutanoyl]amino]-3-carboxypropanoyl]amino]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-phenylpropanoyl]amino]-5-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-1,6-diamino-1-oxohexan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxopentan-2-yl]amino]-5-oxopentanoic acid is [H]/N=C(\N)NCCC[C@H](NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](Cc1ccccc1)NC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)CNC(=O)[C@H](CC(=O)O)NC(=O)[C@@H](NC(=O)[C@H](Cc1ccccc1)NC(=O)[C@@H](NC(=O)[C@H](CC(N)=O)NC(=O)CNC(=O)[C@H](CCCCN)NC(=O)[C@H](CO)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](Cc1ccccc1)NC(C)=O)C(C)C)C(C)C)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCN/C(N)=N/[H])C(=O)N[C@H](C(=O)N[C@@H](CCCCN)C(N)=O)C(C)C.

What is the InChIKey of (4S)-4-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-acetamido-3-phenylpropanoyl]amino]-5-amino-5-oxopentanoyl]amino]-3-hydroxypropanoyl]amino]-6-aminohexanoyl]amino]acetyl]amino]-4-amino-4-oxobutanoyl]amino]-3-methylbutanoyl]amino]-3-phenylpropanoyl]amino]-3-methylbutanoyl]amino]-3-carboxypropanoyl]amino]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-phenylpropanoyl]amino]-5-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-1,6-diamino-1-oxohexan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxopentan-2-yl]amino]-5-oxopentanoic acid?

The InChIKey is SAMNVGAOIFZWAM-XPXQQXPPSA-N. The full InChI is InChI=1S/C108H164N30O28/c1-57(2)47-73(97(157)128-70(34-24-46-119-108(116)117)96(156)136-87(58(3)4)104(164)125-67(90(113)150)31-19-21-43-109)131-93(153)69(33-23-45-118-107(114)115)127-94(154)72(40-42-85(146)147)130-100(160)76(49-63-27-15-11-16-28-63)132-99(159)75(51-65-35-37-66(141)38-36-65)123-83(144)55-121-92(152)79(53-86(148)149)134-106(166)89(60(7)8)137-101(161)77(50-64-29-17-12-18-30-64)133-105(165)88(59(5)6)138-102(162)78(52-82(112)143)124-84(145)54-120-91(151)68(32-20-22-44-110)126-103(163)80(56-139)135-95(155)71(39-41-81(111)142)129-98(158)74(122-61(9)140)48-62-25-13-10-14-26-62/h10-18,25-30,35-38,57-60,67-80,87-89,139,141H,19-24,31-34,39-56,109-110H2,1-9H3,(H2,111,142)(H2,112,143)(H2,113,150)(H,120,151)(H,121,152)(H,122,140)(H,123,144)(H,124,145)(H,125,164)(H,126,163)(H,127,154)(H,128,157)(H,129,158)(H,130,160)(H,131,153)(H,132,159)(H,133,165)(H,134,166)(H,135,155)(H,136,156)(H,137,161)(H,138,162)(H,146,147)(H,148,149)(H4,114,115,118)(H4,116,117,119)/t67-,68-,69-,70-,71-,72-,73-,74-,75-,76-,77-,78-,79-,80-,87-,88-,89-/m0/s1.

What are the key properties of (4S)-4-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-acetamido-3-phenylpropanoyl]amino]-5-amino-5-oxopentanoyl]amino]-3-hydroxypropanoyl]amino]-6-aminohexanoyl]amino]acetyl]amino]-4-amino-4-oxobutanoyl]amino]-3-methylbutanoyl]amino]-3-phenylpropanoyl]amino]-3-methylbutanoyl]amino]-3-carboxypropanoyl]amino]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-phenylpropanoyl]amino]-5-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-1,6-diamino-1-oxohexan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxopentan-2-yl]amino]-5-oxopentanoic acid?

(4S)-4-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-acetamido-3-phenylpropanoyl]amino]-5-amino-5-oxopentanoyl]amino]-3-hydroxypropanoyl]amino]-6-aminohexanoyl]amino]acetyl]amino]-4-amino-4-oxobutanoyl]amino]-3-methylbutanoyl]amino]-3-phenylpropanoyl]amino]-3-methylbutanoyl]amino]-3-carboxypropanoyl]amino]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-phenylpropanoyl]amino]-5-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-1,6-diamino-1-oxohexan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxopentan-2-yl]amino]-5-oxopentanoic acid has a molecular weight of 2330.68 g/mol, XLogP of -8.09, 78 rotatable bonds, 34 hydrogen bond donors, and 30 hydrogen bond acceptors.

Where does this data come from?

All data for (4S)-4-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-acetamido-3-phenylpropanoyl]amino]-5-amino-5-oxopentanoyl]amino]-3-hydroxypropanoyl]amino]-6-aminohexanoyl]amino]acetyl]amino]-4-amino-4-oxobutanoyl]amino]-3-methylbutanoyl]amino]-3-phenylpropanoyl]amino]-3-methylbutanoyl]amino]-3-carboxypropanoyl]amino]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-phenylpropanoyl]amino]-5-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-5-carbamimidamido-1-[[(2S)-1-[[(2S)-1,6-diamino-1-oxohexan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxopentan-2-yl]amino]-5-oxopentanoic acid is sourced from PubChem (CID 134149406), the world's largest open chemistry database maintained by the National Library of Medicine (NIH).