(2S)-2-{2-[(2S)-6-amino-2-[(2S)-6-amino-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-6-amino-2-[(2S,3S)-2-[(2S,3S)-2-[(2S)-2-[(2S)-2-[(2S)-6-amino-2-[(2S)-2-[(2S)-2-[(2S,3R)-2-[(2S)-2-[(2S)-2-{[(2S)-1-[(2S,3R)-2-[(2S)-2-[(2S)-2-[(2S)-6-amino-2-[(2S)-2-[(2S)-2-[(2S,3R)-2-[(2S)-2-[(2S)-2-(2-{2-[(2S)-2-amino-3-(4-hydroxyphenyl)propanamido]acetamido}acetamido)-3-phenylpropanamido]-4-(methylsulfanyl)butanamido]-3-hydroxybutanamido]-3-hydroxypropanamido]-4-carboxybutanamido]hexanamido]-3-hydroxypropanamido]-4-carbamoylbutanamido]-3-hydroxybutanoyl]pyrrolidin-2-yl]formamido}-4-methylpentanamido]-3-methylbutanamido]-3-hydroxybutanamido]-4-methylpentanamido]-3-phenylpropanamido]hexanamido]-3-carbamoylpropanamido]propanamido]-3-methylpentanamido]-3-methylpentanamido]hexanamido]-3-carbamoylpropanamido]propanamido]-3-(4-hydroxyphenyl)propanamido]hexanamido]hexanamido]acetamido}pentanedioic acid

• ChemBase ID: 156758
• Molecular Formular: C158H251N39O46S
• Molecular Mass: 3464.98224
• Monoisotopic Mass: 3462.82211275
• SMILES: CC[C@H](C)[C@@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(=O)N)C(=O)N[C@@H](C)C(=O)N[C@@H](Cc1ccc(cc1)O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)NCC(=O)N[C@@H](CCC(=O)O)C(=O)O)NC(=O)[C@H](C)NC(=O)[C@H](CC(=O)N)NC(=O)[C@H](CCCCN)NC(=O)[C@H](Cc1ccccc1)NC(=O)[C@H](CC(C)C)NC(=O)[C@H]([C@@H](C)O)NC(=O)[C@H](C(C)C)NC(=O)[C@H](CC(C)C)NC(=O)[C@@H]1CCCN1C(=O)[C@H]([C@H](C)O)NC(=O)[C@H](CCC(=O)N)NC(=O)[C@H](CO)NC(=O)[C@H](CCCCN)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CO)NC(=O)[C@H]([C@@H](C)O)NC(=O)[C@H](CCSC)NC(=O)[C@H](Cc1ccccc1)NC(=O)CNC(=O)CNC(=O)[C@H](Cc1ccc(cc1)O)N
• Canonical SMILES: NCCCC[C@@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)NCC(=O)N[C@H](C(=O)O)CCC(=O)O)CCCCN)CCCCN)Cc1ccc(cc1)O)C)CC(=O)N)CCCCN)[C@H](CC)C)[C@H](CC)C)C)CC(=O)N)NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@H]([C@H](O)C)NC(=O)[C@H](C(C)C)NC(=O)[C@@H](NC(=O)[C@@H]1CCCN1C(=O)[C@H]([C@@H](O)C)NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@H]([C@H](O)C)NC(=O)[C@@H](NC(=O)[C@H](Cc1ccccc1)NC(=O)CNC(=O)CNC(=O)[C@H](Cc1ccc(cc1)O)N)CCSC)CO)CCC(=O)O)CCCCN)CO)CCC(=O)N)CC(C)C)CC(C)C)Cc1ccccc1
• InChI: InChI=1S/C158H251N39O46S/c1-17-84(9)126(153(237)182-102(44-29-34-65-163)137(221)186-112(74-118(166)206)142(226)171-86(11)131(215)183-110(73-94-48-52-96(204)53-49-94)146(230)177-99(41-26-31-62-160)135(219)175-98(40-25-30-61-159)134(218)170-78-122(210)173-106(158(242)243)56-59-124(213)214)193-154(238)127(85(10)18-2)192-132(216)87(12)172-143(227)113(75-119(167)207)185-136(220)100(42-27-32-63-161)178-147(231)111(72-92-38-23-20-24-39-92)184-144(228)107(68-81(3)4)188-155(239)129(89(14)201)195-152(236)125(83(7)8)191-148(232)108(69-82(5)6)187-151(235)116-45-35-66-197(116)157(241)130(90(15)202)196-140(224)103(54-57-117(165)205)179-149(233)114(79-198)189-138(222)101(43-28-33-64-162)176-139(223)104(55-58-123(211)212)180-150(234)115(80-199)190-156(240)128(88(13)200)194-141(225)105(60-67-244-16)181-145(229)109(71-91-36-21-19-22-37-91)174-121(209)77-168-120(208)76-169-133(217)97(164)70-93-46-50-95(203)51-47-93/h19-24,36-39,46-53,81-90,97-116,125-130,198-204H,17-18,25-35,40-45,54-80,159-164H2,1-16H3,(H2,165,205)(H2,166,206)(H2,167,207)(H,168,208)(H,169,217)(H,170,218)(H,171,226)(H,172,227)(H,173,210)(H,174,209)(H,175,219)(H,176,223)(H,177,230)(H,178,231)(H,179,233)(H,180,234)(H,181,229)(H,182,237)(H,183,215)(H,184,228)(H,185,220)(H,186,221)(H,187,235)(H,188,239)(H,189,222)(H,190,240)(H,191,232)(H,192,216)(H,193,238)(H,194,225)(H,195,236)(H,196,224)(H,211,212)(H,213,214)(H,242,243)/t84-,85-,86-,87-,88+,89+,90+,97-,98-,99-,100-,101-,102-,103-,104-,105-,106-,107-,108-,109-,110-,111-,112-,113-,114-,115-,116-,125-,126-,127-,128-,129-,130-/m0/s1
• InChIKey: JMHFFDIMOUKDCZ-NTXHZHDSSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: (2S)-2-{2-[(2S)-6-amino-2-[(2S)-6-amino-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-6-amino-2-[(2S,3S)-2-[(2S,3S)-2-[(2S)-2-[(2S)-2-[(2S)-6-amino-2-[(2S)-2-[(2S)-2-[(2S,3R)-2-[(2S)-2-[(2S)-2-{[(2S)-1-[(2S,3R)-2-[(2S)-2-[(2S)-2-[(2S)-6-amino-2-[(2S)-2-[(2S)-2-[(2S,3R)-2-[(2S)-2-[(2S)-2-(2-{2-[(2S)-2-amino-3-(4-hydroxyphenyl)propanamido]acetamido}acetamido)-3-phenylpropanamido]-4-(methylsulfanyl)butanamido]-3-hydroxybutanamido]-3-hydroxypropanamido]-4-carboxybutanamido]hexanamido]-3-hydroxypropanamido]-4-carbamoylbutanamido]-3-hydroxybutanoyl]pyrrolidin-2-yl]formamido}-4-methylpentanamido]-3-methylbutanamido]-3-hydroxybutanamido]-4-methylpentanamido]-3-phenylpropanamido]hexanamido]-3-carbamoylpropanamido]propanamido]-3-methylpentanamido]-3-methylpentanamido]hexanamido]-3-carbamoylpropanamido]propanamido]-3-(4-hydroxyphenyl)propanamido]hexanamido]hexanamido]acetamido}pentanedioic acid
• IUPAC Traditional name: (2S)-2-{2-[(2S)-6-amino-2-[(2S)-6-amino-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-6-amino-2-[(2S,3S)-2-[(2S,3S)-2-[(2S)-2-[(2S)-2-[(2S)-6-amino-2-[(2S)-2-[(2S)-2-[(2S,3R)-2-[(2S)-2-[(2S)-2-{[(2S)-1-[(2S,3R)-2-[(2S)-2-[(2S)-2-[(2S)-6-amino-2-[(2S)-2-[(2S)-2-[(2S,3R)-2-[(2S)-2-[(2S)-2-(2-{2-[(2S)-2-amino-3-(4-hydroxyphenyl)propanamido]acetamido}acetamido)-3-phenylpropanamido]-4-(methylsulfanyl)butanamido]-3-hydroxybutanamido]-3-hydroxypropanamido]-4-carboxybutanamido]hexanamido]-3-hydroxypropanamido]-4-carbamoylbutanamido]-3-hydroxybutanoyl]pyrrolidin-2-yl]formamido}-4-methylpentanamido]-3-methylbutanamido]-3-hydroxybutanamido]-4-methylpentanamido]-3-phenylpropanamido]hexanamido]-3-carbamoylpropanamido]propanamido]-3-methylpentanamido]-3-methylpentanamido]hexanamido]-3-carbamoylpropanamido]propanamido]-3-(4-hydroxyphenyl)propanamido]hexanamido]hexanamido]acetamido}pentanedioic acid
• Synonyms: β-Lipotropin 61-91; β-Lipotropin C-fragment; LPH (61-91); β-Endorphin human

Database IDs

• CAS Number: 61214-51-5
• MDL Number: MFCD00076383
• PubChem SID: 162250895
• PubChem CID: 16132316

CALCULATED PROPERTIES

• Acid pKa: 2.8351543
• H Acceptors: 52
• H Donor: 48
• LogD (pH = 5.5): -27.604494
• LogD (pH = 7.4): -26.06463
• Log P: -22.022074
• Molar Refractivity: 874.1337 cm^3
• Polarizability: 344.18832 Å^3
• Polar Surface Area: 1403.11 Å^2
• Rotatable Bonds: 118
• Lipinski's Rule of Five: false

PROPERTIES

Safety Information

• German water hazard class: 3
• Personal Protective Equipment: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
• Storage Temperature: -20°C

Pharmacology Properties

• Gene Information: human ... POMC(5443)

Product Information

• Purity: ≥96% (HPLC)
• Biological Source: synthetic
• Empirical Formula (Hill Notation): C158H251N39O46S

DETAILS

Sigma Aldrich - 45177

Amino Acid Sequence
Tyr-Gly-Gly-Phe-Met-Thr-Ser-Glu-Lys-Ser-Gln-Thr-Pro-Leu-Val-Thr-Leu-Phe-Lys-Asn-Ala-Ile-Ile-Lys-Asn-Ala-Tyr-Lys-Lys-Gly-Glu
Other Notes
The most potent of the opioid peptides1,2,3
Biochem/physiol Actions
Potent endogenous opioid protein that is derived from propiomelanocortin, a protein found in the brain, anterior pituitary, skin, immune system, and other peripheral sites. It is released in response to painful stimuli and has potent antinociceptive activity that is mediated through its action on μ receptors in brain and by μ and κ receptors in the spinal cord.