[Leu5]-Enkephalin, amide - ≥99% , CAS No.60117-24-0

CAS: 60117-24-0 Cat. No.: E646857 Molecular Weight: 554.64 PubChem CID: 100168
AVAILABLE TO ORDER
GRADE & PURITY ≥99%
Synonyms
14-Amino-5-benzyl-4,7,10,13-tetrahydroxy-15-(4-hydroxyphenyl)-2-(2-methylpropyl)-3,6,9,12-tetraazapentadeca-3,6,9,12-tetraen-1-imidic acid | NSC 351912 | Leu-enkephalinamide | 2-[[2-[[2-[[2-[[2-amino-3-(4-hydroxyphenyl)propanoyl]amino]acetyl]amino]acetyl]
Storage
Protected from light,Desiccated,Store at -80°C
Shipped In
Dry ice packs + Cold packs
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
10mg
E646857-10mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$154.90
25mg
E646857-25mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$280.90
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Why this grade

≥99% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Protected from light,Desiccated,Store at -80°C Ships Dry ice packs + Cold packs Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

[Leu5]-Enkephalin, amide is a δ opioid receptor agonist.

In Vitro

[Leu5]-Enkephalin causes concentration-dependent, reversible inhibition of pelvic nerve-evoked contractions, with an IC 50 value of 2.1 nM. MCE has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

Levels of [Leu5]-Enkephalin are significantly increased in the nucleus raphe magnus (NRM) of rats 2 weeks after the injection of complete Freund's adjuvant (CFA) (1.02±0.2 pmol/mg protein) as compared with saline-treated rats (0.49±0.04 pmol/mg protein; p<0.01). Tissue levels of [Leu5]-Enkephalin are uniformly increased in the caudal ventrolateral periaqueductal gray (PAG) 4 hr (1.15±0.25 pmol/mg protein), 4 d (1.16±0.18 pmol/mg protein), and 2 weeks (1.18±0.17 pmol/mg protein) after the injection of CFA as compared with saline-treated rats (0.55±0.03 pmol/mg protein; p<0.05, all times). A smaller increase in the levels of [Leu5]-Enkephalin occurred in the rostral aspect of the ventrolateral PAG at all time points. Finally, levels of [Leu5]-Enkephalin are also increased in the contralateral microcellular tegmental nucleus 4 d after the injection of CFA (0.53±0.04 pmol/mg protein) compared with levels in saline-treated rats (0.38±0.02 pmol/mg protein; p<0.05) . MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Form:Solid

IC50& Target:δ opioid receptor

Specifications

Synonyms
14-Amino-5-benzyl-4, 7, 10, 13-tetrahydroxy-15-(4-hydroxyphenyl)-2-(2-methylpropyl)-3, 6, 9, 12-tetraazapentadeca-3, 6, 9, 12-tetraen-1-imidic acid | NSC 351912 | Leu-enkephalinamide | 2-[[2-[[2-[[2-[[2-amino-3-(4-hydroxyphenyl)propanoyl]amino]acetyl]amino]acetyl]
Specifications & Purity
≥99%
Biochemical and Physiological Mechanisms
[Leu5]-Enkephalin, amide is a δ opioid receptor agonist.
Storage
Protected from light, Desiccated, Store at -80°C
Shipped In
Dry ice packs + Cold packs
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥99%
Names and Identifiers
Canonical SmilesCC(C)CC(C(=O)N)NC(=O)C(CC1=CC=CC=C1)NC(=O)CNC(=O)CNC(=O)C(CC2=CC=C(C=C2)O)N
IUPAC Name2-[[2-[[2-[[2-[[2-amino-3-(4-hydroxyphenyl)propanoyl]amino]acetyl]amino]acetyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanamide
InChIKeyYZXGODHVAJPXSG-UHFFFAOYSA-N
INCHI1S/C28H38N6O6/c1-17(2)12-22(26(30)38)34-28(40)23(14-18-6-4-3-5-7-18)33-25(37)16-31-24(36)15-32-27(39)21(29)13-19-8-10-20(35)11-9-19/h3-11,17,21-23,35H,12-16,29H2,1-2H3,(H2,30,38)(H,31,36)(H,32,39)(H,33,37)(H,34,40)
Isomeric SMILES CC(C)CC(C(=O)N)NC(=O)C(CC1=CC=CC=C1)NC(=O)CNC(=O)CNC(=O)C(CC2=CC=C(C=C2)O)N
Alternate CAS 60117-24-0
PubChem CID 100168
NSC Number 351912
MeSH Entry Terms enkephalinamide, Leu-;enkephalinamide-Leu;Leu-enkephalinamide;leucine enkephalinamide
Molecular Weight 554.64

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
SubclassAmino acids, peptides, and analogues
Intermediate Tree Nodes Peptides
Direct ParentOligopeptides
Alternative Parents Tyrosine and derivatives  Phenylalanine and derivatives  Leucine and derivatives  N-acyl-alpha amino acids and derivatives  Alpha amino acid amides  Amphetamines and derivatives  1-hydroxy-2-unsubstituted benzenoids  Aralkylamines  Fatty amides  Secondary carboxylic acid amides  Primary carboxylic acid amides  Carbonyl compounds  Hydrocarbon derivatives  Monoalkylamines  Organic oxides  Organopnictogen compounds  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Alpha-oligopeptide - Tyrosine or derivatives - Phenylalanine or derivatives - Leucine or derivatives - N-acyl-alpha amino acid or derivatives - Alpha-amino acid amide - Amphetamine or derivatives - N-substituted-alpha-amino acid - Alpha-amino acid or derivatives - 1-hydroxy-2-unsubstituted benzenoid - Aralkylamine - Phenol - Fatty acyl - Benzenoid - Monocyclic benzene moiety - Fatty amide - Secondary carboxylic acid amide - Primary carboxylic acid amide - Carboxamide group - Amino acid or derivatives - Organic nitrogen compound - Primary aliphatic amine - Organonitrogen compound - Organooxygen compound - Carbonyl group - Primary amine - Hydrocarbon derivative - Organic oxide - Amine - Organopnictogen compound - Organic oxygen compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as oligopeptides. These are organic compounds containing a sequence of between three and ten alpha-amino acids joined by peptide bonds.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Chemical and Physical Properties
SolubilityDMSO : 250 mg/mL (450.74 mM; Need ultrasonic)
Molecular Weight554.600 g/mol
XLogP30.700
Hydrogen Bond Donor Count7
Hydrogen Bond Acceptor Count7
Rotatable Bond Count15
Exact Mass554.285 Da
Monoisotopic Mass554.285 Da
Topological Polar Surface Area206.000 Ų
Heavy Atom Count40
Formal Charge0
Complexity854.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count3
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
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