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Enkephalin, pen(2,5)-

Catalog No. T31629   CAS 88381-29-7

Enkephalin, pen(2,5)- is a bioactive chemical.

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Enkephalin, pen(2,5)- Chemical Structure
Enkephalin, pen(2,5)-, CAS 88381-29-7
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Biological Description
Chemical Properties
Storage & Solubility Information
Description Enkephalin, pen(2,5)- is a bioactive chemical.
Molecular Weight 647.81
Formula C30H41N5O7S2
CAS No. 88381-29-7


Powder: -20°C for 3 years | In solvent: -80°C for 1 year

Solubility Information

( < 1 mg/ml refers to the product slightly soluble or insoluble )

TargetMolReferences and Literature

1. He SF, Jin SY, Yang W, Pan YL, Huang J, Zhang SJ, Zhang L, Zhang Y. Cardiac μ-opioid receptor contributes to opioid-induced cardioprotection in chronic heart failure. Br J Anaesth. 2018 Jul;121(1):26-37. doi: 10.1016/j.bja.2017.11.110. Epub 2018 Feb 2. PubMed PMID: 29935580. 2. Tseng TJ, Yang ML, Hsieh YL, Ko MH, Hsieh ST. Nerve Decompression Improves Spinal Synaptic Plasticity of Opioid Receptors for Pain Relief. Neurotox Res. 2018 Feb;33(2):362-376. doi: 10.1007/s12640-017-9799-5. Epub 2017 Aug 23. PubMed PMID: 28836121. 3. McDonnell C, Leánez S, Pol O. The induction of the transcription factor Nrf2 enhances the antinociceptive effects of delta-opioid receptors in diabetic mice. PLoS One. 2017 Jul 10;12(7):e0180998. doi: 10.1371/journal.pone.0180998. eCollection 2017. PubMed PMID: 28700700; PubMed Central PMCID: PMC5507309. 4. Margolis EB, Fujita W, Devi LA, Fields HL. Two delta opioid receptor subtypes are functional in single ventral tegmental area neurons, and can interact with the mu opioid receptor. Neuropharmacology. 2017 Sep 1;123:420-432. doi: 10.1016/j.neuropharm.2017.06.019. Epub 2017 Jun 21. PubMed PMID: 28645621; PubMed Central PMCID: PMC5563499.

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Molarity Calculator
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Molarity Calculator allows you to calculate the

  • Mass of a compound required to prepare a solution of known volume and concentration
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See Example

An example of a molarity calculation using the molarity calculator
What is the mass of compound required to make a 10 mM stock solution in 10 ml of water given that the molecular weight of the compound is 197.13 g/mol?
Enter 197.13 into the Molecular Weight (MW) box
Enter 10 into the Concentration box and select the correct unit (millimolar)
Enter 10 into the Volume box and select the correct unit (milliliter)
Press calculate
The answer of 19.713 mg appears in the Mass box


Calculator the dilution required to prepare a stock solution

Calculate the dilution required to prepare a stock solution
The dilution calculator is a useful tool which allows you to calculate how to dilute a stock solution of known concentration. Enter C1, C2 & V2 to calculate V1.

See Example

An example of a dilution calculation using the Tocris dilution calculator
What volume of a given 10 mM stock solution is required to make 20ml of a 50 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=50 μM, V2=20 ml and V1 is the unknown:
Enter 10 into the Concentration (start) box and select the correct unit (millimolar)
Enter 50 into the Concentration (final) box and select the correct unit (micromolar)
Enter 20 into the Volume (final) box and select the correct unit (milliliter)
Press calculate
The answer of 100 microliter (0.1 ml) appears in the Volume (start) box


Calculate the volume of solvent required to reconstitute your vial.

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial.
Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Enter the chemical formula of a compound to calculate its molar mass and elemental composition

Tip: Chemical formula is case sensitive: C10H16N2O2 c10h16n2o2

Instructions to calculate molar mass (molecular weight) of a chemical compound:
To calculate molar mass of a chemical compound, please enter its chemical formula and click 'Calculate'.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed n the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.


Tech Support

Please see Inhibitor Handling Instructions for more frequently ask questions. Topics include: how to prepare stock solutions, how to store products, and cautions on cell-based assays & animal experiments, etc.


Enkephalin, pen(2,5)- 88381-29-7 Enkephalin, pen(2,5) inhibitor inhibit