Coelenterazine

Alias: Oplophorus, luciferin; Coelenterazine; CLZN
Cat No.:V1873 Purity: ≥98%
Coelenterazine, a luciferin which is a light-emitting molecule, is a luminescent enzyme substrate that is used for monitoring reporter genes in BRET, ELISA and HTS techniques.
Coelenterazine Chemical Structure CAS No.: 55779-48-1
Product category: Reactive Oxygen Species
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
25mg
50mg
100mg
Other Sizes

Other Forms of Coelenterazine:

  • Coelenteramide
Official Supplier of:
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

Coelenterazine, a luciferin which is a light-emitting molecule, is a luminescent enzyme substrate that is used for monitoring reporter genes in BRET, ELISA and HTS techniques. It is a cell-permeable aequorin luminophore that acts as a very sensitive and specific chemiluminescent probe for the superoxide anion. Coelenterazine can also be used for detecting changes in intracellular Ca2+ in cells that have been transfected with apoaequorin cDNA. Coelenterazine also acts as a powerful antioxidant.

Biological Activity I Assay Protocols (From Reference)
ln Vitro
P-glycoprotein-mediated efflux transport of coelenterazine was the cause of the poor bioluminescence observed in HCT-8 control cells transiently expressing Renilla luciferase (RLuc). On the other hand, strong bioluminescence is shown in HCT-8 cells that transiently produce RLuc, a condition in which shRNAi downregulates P-glycoprotein [3].
ln Vivo
After giving animals an intravenous injection of coelenterazine (2 mg/kg), which was followed by five minutes of exposure to a charge-coupled device (CCD) camera, the in vivo growth potential of HCC1806-RR was observed. Rluc activity was observed as luminosity released by tumor cells and was captured as pseudocolor images overlaying monochrome animal photos. The majority of animals also displayed metastases to the inguinal ILN in addition to exhibiting extremely high Rluc activity at the main location [4].
Animal Protocol
Coelenterazine (4 μg/g) formulated from an ethanol stock diluted in sodium phosphate buffer (50 mM).
5 mg/kg, intravenous administration
References
[1]. Markova SV, et al, Coelenterazine-dependent luciferases. Biochemistry (Mosc). 2015 Jun;80(6):714-32.
[2]. Lucas M, et al. Coelenterazine is a superoxide anion-sensitive chemiluminescent probe: its usefulness in the assay of respiratory burst in neutrophils. Anal Biochem. 1992 Nov 1;206(2):273-7.
[3]. Pichler A, et al. In vivo RNA interference-mediated ablation of MDR1 P-glycoprotein. Clin Cancer Res. 2005 Jun 15;11(12):4487-94.
[4]. Volk-Draper LD, et al. Novel model for basaloid triple-negative breast cancer: behavior in vivo and response to therapy. Neoplasia. 2012 Oct;14(10):926-42
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C26H21N3O3
Molecular Weight
423.46
CAS #
55779-48-1
Related CAS #
Coelenteramide;50611-86-4
SMILES
C1=CC=C(C=C1)CC2=C3N=C(C(=O)N3C=C(N2)C4=CC=C(C=C4)O)CC5=CC=C(C=C5)O
Synonyms
Oplophorus, luciferin; Coelenterazine; CLZN
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO:84 mg/mL (198.4 mM)
Water:<1 mg/mL
Ethanol:<1 mg/mL
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 0.2 mg/mL (0.47 mM) (saturation unknown) in 10% EtOH + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 2.0 mg/mL clear EtOH stock solution to 400 μL of PEG300 and mix evenly; then add 50 μL of Tween-80 to the above solution and mix evenly; then add 450 μL of normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 0.2 mg/mL (0.47 mM) (saturation unknown) in 10% EtOH + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 2.0 mg/mL clear EtOH stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 0.2 mg/mL (0.47 mM) (saturation unknown) in 10% EtOH + 90% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.3615 mL 11.8075 mL 23.6150 mL
5 mM 0.4723 mL 2.3615 mL 4.7230 mL
10 mM 0.2361 mL 1.1807 mL 2.3615 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in 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.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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