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Cat.No. 2931 - Spinorphin | Leu-Val-Val-Tyr-Pro-Trp-Thr | CAS No. 137201-62-8
Description: Enkephalin-degrading and ACE inhibitor

Biological Activity

Endogenous peptide; inhibits enkephalin-degrading enzymes (aminopeptidase, dipeptidyl aminopeptidase III, neprilysin) and angiotensin-converting enzyme. Displays antinociceptive effects in mice.

Technical Data

M. Wt 877.05
Formula C45H64N8O10
Sequence LVVYPWT
Storage Desiccate at -20°C
CAS Number 137201-62-8
PubChem ID 3081832
Smiles [H]N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CC1=CC=C(O)C=C1)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CC1=CNC2=C1C=CC=C2)C(=O)N[C@@H]([C@@H](C)O)C(O)=O

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

All Tocris products are intended for laboratory research use only.

Solubility Data

SolubilitySoluble to 1 mg/ml in water

Preparing Stock Solutions

The following data is based on the product molecular weight 877.05. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.14 mL 5.7 mL 11.4 mL
5 mM 0.23 mL 1.14 mL 2.28 mL
10 mM 0.11 mL 0.57 mL 1.14 mL
50 mM 0.02 mL 0.11 mL 0.23 mL

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Product Datasheets

Certificate of Analysis / Product Datasheet
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Safety Datasheet


References are publications that support the products' biological activity.

Honda et al (2001) Spinorphin, an endogenous inhibitor of enkephalin-degrading enzymes, potentiates Leu-enkephalin-induced anti-allodynic and antinociceptive effects in mice. Jpn.J.Pharmacol. 87 261 PMID: 11829145

Liang et al (2001) The endogenous opioid spinorphin blocks fMet-Leu-Phe-induced neutrophil chemotaxis by acting as a specific antagonist at the N-formylpeptide receptor subtype FPR. J.Immunol. 167 6609 PMID: 11714831

If you know of a relevant reference for Spinorphin, please let us know.

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Citations for Spinorphin

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Literature in this Area


Cardiovascular Research Product Guide

A collection of over 250 products for cardiovascular research, the guide includes research tools for the study of:

  • Hypertension
  • Thrombosis and Hemostasis
  • Atherosclerosis
  • Myocardial Infarction
  • Ischemia/Reperfusion Injury
  • Arrhythmias
  • Heart Failure

Pathways for Spinorphin


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