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Org OD 02-0 (10-Ethenyl-19-norprogesterone)

Cat No.:V67770 Purity: ≥98%
Org OD 02-0 (10-Ethenyl-19-norprogesterone) is a membrane progesterone receptor alpha (mPRα) specific agonist (IC50= 33.9 nM).
Org OD 02-0 (10-Ethenyl-19-norprogesterone)
Org OD 02-0 (10-Ethenyl-19-norprogesterone) Chemical Structure CAS No.: 13258-85-0
Product category: Progesterone Receptor
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
25mg
Other Sizes
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Product Description
Org OD 02-0 (10-Ethenyl-19-norprogesterone) is a membrane progesterone receptor alpha (mPRα) specific agonist (IC50= 33.9 nM). Org OD 02-0 activates MAPK activity. Org OD 02-0 inhibits pituitary prolactin (PRL) secretion.
Org OD 02-0 (10-Ethenyl-19-norprogesterone) is a selective agonist for the membrane progesterone receptor alpha (mPRα). It has a molecular formula of C₂₂H₃₀O₂ and a molecular weight of 326.47 g/mol. Org OD 02-0 exhibits an IC₅₀ of 33.9 nM for mPRα. The compound activates MAPK activity and inhibits prolactin (PRL) secretion in the pituitary. Org OD 02-0 mimics the protective effects of progestin hormones on serum starvation-induced cell death and apoptosis in both granulosa and breast cancer cells without altering caspase 3 activity. It is a valuable tool for studying membrane progesterone receptor signaling.
Biological Activity I Assay Protocols (From Reference)
Targets
33.9 nM (mPRα)[1]
Org OD 02-0 targets the membrane progesterone receptor alpha (mPRα), functioning as a specific agonist. It exhibits an IC₅₀ of 33.9 nM for mPRα. Unlike classical nuclear progesterone receptors, mPRα is a G protein-coupled receptor that mediates rapid, non-genomic effects of progestins. By activating mPRα, Org OD 02-0 activates MAPK activity and inhibits prolactin (PRL) secretion in the pituitary. The compound's selectivity for mPRα makes it a valuable tool for studying mPRα-mediated signaling pathways.
ln Vitro
In vitro, Org OD 02-0 demonstrates potent and selective mPRα agonist activity with an IC₅₀ of 33.9 nM. The compound activates MAPK activity in mPRα-expressing cells. It mimics the protective effects of progestin hormones on serum starvation-induced cell death and apoptosis in both granulosa and breast cancer cells without altering caspase 3 activity. The compound inhibits prolactin (PRL) secretion in the pituitary. These activities are assessed in cell-based assays measuring MAPK phosphorylation, cell viability, apoptosis markers, and prolactin secretion.
ln Vivo
Specific in vivo activity data for Org OD 02-0 are not extensively documented in the publicly available literature. As a selective mPRα agonist, the compound has potential applications in studying the physiological roles of membrane progesterone receptor signaling. Its effects on prolactin secretion suggest potential applications in reproductive endocrinology research. The compound's protective effects against cell death suggest potential applications in neuroprotection or tissue protection. Further in vivo studies are needed to fully characterize its efficacy and safety.
Enzyme Assay
In vitro enzyme/receptor binding assays for Org OD 02-0 typically involve competitive binding experiments using mPRα preparations and radiolabeled or fluorescently labeled progestins as tracers. The compound's binding affinity to mPRα is assessed, with an IC₅₀ of 33.9 nM determined through dose-response binding experiments. Assays are conducted in buffered solutions at physiological pH with appropriate receptor preparations. Binding affinity is expressed as IC₅₀ or Kd values. The compound's agonist activity is confirmed through functional assays measuring MAPK activation.
Cell Assay
In vitro cell-based assays for Org OD 02-0 utilize cell lines expressing mPRα to assess its agonist activity. Cells are treated with varying concentrations of the compound for appropriate time periods. MAPK activation is assessed by measuring phosphorylation levels of ERK1/2 or other MAPK pathway components by Western blot or ELISA. Cell viability and apoptosis are assessed using MTT, Annexin V, or caspase activity assays. Prolactin secretion is measured by ELISA or radioimmunoassay in pituitary cell cultures. Standard cell culture conditions (37°C, 5% CO₂) with appropriate media are employed.
Animal Protocol
In vivo animal studies with Org OD 02-0 would typically involve administration of the compound to rodent models to evaluate its effects on mPRα-mediated signaling and reproductive function. Potential study designs include models of reproductive function, neuroprotection, or tissue protection. Typical endpoints would include measurements of prolactin levels, assessment of MAPK activation in target tissues, evaluation of cell survival markers, and pharmacokinetic profiling. All procedures must comply with institutional animal care and use guidelines.
ADME/Pharmacokinetics
Specific pharmacokinetic data for Org OD 02-0 are not extensively documented in the publicly available literature. The compound has a molecular weight of 326.47 g/mol and a molecular formula of C₂₂H₃₀O₂. As a small molecule with favorable physicochemical properties, it may have suitable characteristics for oral bioavailability, though detailed PK parameters have not been published. The compound's chemical name is 10-Ethenyl-19-norprogesterone. Further studies are needed to characterize its absorption, distribution, metabolism, and excretion profile.
Toxicity/Toxicokinetics
Org OD 02-0 is intended for research use only and is not approved for human therapeutic applications. As a research chemical, comprehensive toxicological data are not available in the publicly accessible literature. Standard safety precautions should be observed when handling this compound, including the use of appropriate personal protective equipment. As with all research chemicals, comprehensive toxicological profiling would be required before any consideration for clinical development.
References

[1]. Comparison between steroid binding to membrane progesterone receptor alpha (mPRalpha) and to nuclear progesterone receptor: correlation with physicochemical properties assessed by comparative molecular field analysis and identification of mPRalpha-specific agonists. Steroids. 2010 Apr;75(4-5):314-22.

[2]. Participation of membrane progesterone receptor α in the inhibitory effect of progesterone on prolactin secretion. J Neuroendocrinol. 2018 Sep;30(9):e12614.

Additional Infomation
Org OD 02-0 (10-Ethenyl-19-norprogesterone) (CAS#: 13258-85-0) has a molecular formula of C₂₂H₃₀O₂ and a molecular weight of 326.47 g/mol. It is a selective agonist for membrane progesterone receptor alpha (mPRα) with an IC₅₀ of 33.9 nM. The compound activates MAPK activity and inhibits prolactin (PRL) secretion in the pituitary. It mimics the protective effects of progestin hormones on serum starvation-induced cell death. This compound is not a drug and has not undergone clinical trials.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C22H30O2
Molecular Weight
326.472
Exact Mass
326.225
CAS #
13258-85-0
PubChem CID
22212907
Appearance
White to off-white solid powder
LogP
4.889
Hydrogen Bond Donor Count
0
Hydrogen Bond Acceptor Count
2
Rotatable Bond Count
2
Heavy Atom Count
24
Complexity
630
Defined Atom Stereocenter Count
6
SMILES
O=C1CC[C@@]2([C@H]3CC[C@@]4([C@H](CC[C@H]4[C@@H]3CCC2=C1)C(=O)C)C)C=C
InChi Key
VFNRBPBEOXXVPX-GCOBIYGJSA-N
InChi Code
InChI=1S/C22H30O2/c1-4-22-12-9-16(24)13-15(22)5-6-17-19-8-7-18(14(2)23)21(19,3)11-10-20(17)22/h4,13,17-20H,1,5-12H2,2-3H3/t17-,18+,19-,20-,21+,22-/m0/s1
Chemical Name
(8S,9S,10S,13S,14S,17S)-17-acetyl-10-ethenyl-13-methyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one
HS Tariff Code
2934.99.9001
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)
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*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.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 3.0631 mL 15.3153 mL 30.6307 mL
5 mM 0.6126 mL 3.0631 mL 6.1261 mL
10 mM 0.3063 mL 1.5315 mL 3.0631 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

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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?
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  • 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:
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
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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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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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