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ALOX15-IN-1

Cat No.:V73491 Purity: ≥98%
ALOX15-IN-1 (compound 8b) is a potent and specific inhibitor of rabbit and human ALOX15 linoleate oxygenase activity against ALOX15 orthologs linoleic acid (LA) and arachidonic acid.
ALOX15-IN-1
ALOX15-IN-1 Chemical Structure CAS No.: 2764818-24-6
Product category: Lipoxygenase
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
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Product Description
ALOX15-IN-1 (compound 8b) is a potent and specific inhibitor of rabbit and human ALOX15 linoleate oxygenase activity against ALOX15 orthologs linoleic acid (LA) and arachidonic acid. The IC50s of acetic acid (AA) are 0.04 and 2.06 μM, respectively.
ALOX15-IN-1 (compound 8b) (CAS#: 2764818-24-6) is a potent and specific inhibitor of rabbit and human ALOX15 (15-lipoxygenase) linoleate oxygenase activity. It is a research tool designed to inhibit the metabolism of linoleic acid and arachidonic acid by ALOX15 orthologs, with a distinct potency profile depending on the substrate used. It is used to study the role of ALOX15 in inflammation, cell differentiation, and disease.
Biological Activity I Assay Protocols (From Reference)
Targets
ALOX15-IN-1 targets the 15-lipoxygenase enzymes ALOX15, which are key enzymes in polyunsaturated fatty acid (PUFA) metabolism. It inhibits the linoleate oxygenase activity of rabbit and human ALOX15 orthologs. The compound exhibits differential potency depending on the substrate, showing high potency for linoleic acid (LA) as a substrate and weaker, yet specific, activity with arachidonic acid (AA). This allows for the dissection of substrate-specific functions of ALOX15.
ln Vitro
In vitro, ALOX15-IN-1 potently inhibits the rabbit ALOX15-catalyzed oxygenation of linoleic acid (LA) with an IC50 of 0.04 microM. It also inhibits the human ALOX15-catalyzed oxygenation of LA with an IC50 of 2.06 microM, demonstrating species and substrate selectivity. The compound is specific for the linoleate oxygenase activity of ALOX15. These activities make it a potent inhibitor for probing the function of ALOX15 in various biological systems.
ln Vivo
In vivo activity data for ALOX15-IN-1 is not extensively published. As a potent and specific inhibitor of ALOX15, it has the potential to be used in animal models of diseases where this enzyme is implicated, such as inflammation, asthma, and cancer. Based on its in vitro potency, researchers would typically administer it via intraperitoneal or oral routes to study the in vivo effects of ALOX15 inhibition. Formal in vivo efficacy studies would need to be conducted.
Enzyme Assay
To determine ALOX15-IN-1's inhibitory effect, an in vitro enzyme assay is performed. Recombinant rabbit or human ALOX15 protein is incubated in reaction buffer with varying concentrations of ALOX15-IN-1 (e.g., 0.01-100 microM). The reaction is initiated by the addition of the substrate, either linoleic acid (LA) or arachidonic acid (AA). After incubation at room temperature for a set time (e.g., 10-30 minutes), the reaction is stopped. The oxygenated products (hydroperoxyoctadecadienoic acid from LA) are extracted and quantified by HPLC or UV spectrophotometry.
Cell Assay
ALOX15-IN-1 is a research tool and is not a therapeutic. For cell-based assays, macrophages or other relevant cell lines expressing ALOX15 are treated with ALOX15-IN-1 at concentrations around its IC50 values. After treatment, cells are stimulated with a calcium ionophore or other activators to trigger the arachidonic acid cascade. The levels of 15-HETE (the product of ALOX15 acting on arachidonic acid) in the cell supernatant are measured by ELISA or LC-MS/MS to assess the compound's cell-based efficacy. Cytotoxicity is assessed via an LDH release or MTT assay.
Animal Protocol
In vivo procedures for ALOX15-IN-1 are not well-documented in the public literature. As with other lipoxygenase inhibitors, it would be formulated in a suitable vehicle for oral or intraperitoneal administration. For a typical rodent study, animals would be pre-treated with the compound, then challenged with an inflammatory agent (e.g., carrageenan or LPS). Tissue or blood samples would be collected to measure oxylipin levels and inflammatory markers via LC-MS/MS or ELISA to determine the compound's in vivo efficacy.
ADME/Pharmacokinetics
Detailed pharmacokinetic data for ALOX15-IN-1 is not publicly available. The compound has a molecular weight of 473.59 g/mol and a predicted LogP of 6.5, suggesting high lipophilicity. This may result in poor aqueous solubility and potentially high protein binding. For in vivo studies, it is recommended to formulate in DMSO with co-solvents like PEG300, Tween 80, or cyclodextrins to enhance solubility. Researchers should conduct pilot PK studies to determine key parameters like half-life and bioavailability.
Toxicity/Toxicokinetics
Published toxicological data for ALOX15-IN-1 is limited to its in vitro selectivity profile. It is a specific ALOX15 inhibitor, which may minimize off-target effects. In cell-based assays at concentrations up to its IC50 (2.06 microM for human ALOX15/AA), no significant toxicity is reported. As with any novel chemical entity, thorough safety and toxicity studies would be required before any advancement. The compound is for research use only.
References

[1]. N-Substituted 5-(1H-Indol-2-yl)-2-methoxyanilines Are Allosteric Inhibitors of the Linoleate Oxygenase Activity of Selected Mammalian ALOX15 Orthologs: Mechanism of Action. J Med Chem. 2022;65(3):1979-1995.

Additional Infomation
ALOX15-IN-1 is a research-grade compound and is not approved for clinical use. It is primarily a tool for studying the biology of the ALOX15 enzyme, particularly its linoleate oxygenase activity. The differential potency between the rabbit and human enzymes and between substrates is a key feature for mechanistic studies. The compound should be stored as a powder at -20degC, protected from light and moisture, and is soluble in DMSO. For research use only.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C24H31N3O5S
Molecular Weight
473.585045099258
Exact Mass
473.198
CAS #
2764818-24-6
PubChem CID
163322029
Appearance
Off-white to light yellow solid powder
LogP
6.5
Hydrogen Bond Donor Count
3
Hydrogen Bond Acceptor Count
6
Rotatable Bond Count
13
Heavy Atom Count
33
Complexity
699
Defined Atom Stereocenter Count
0
SMILES
CCCCCCCCOC(=O)NS(=O)(=O)NC1=C(C=CC(=C1)C2=CC3=CC=CC=C3N2)OC
InChi Key
OMEJTIUQCWVECC-UHFFFAOYSA-N
InChi Code
InChI=1S/C24H31N3O5S/c1-3-4-5-6-7-10-15-32-24(28)27-33(29,30)26-22-17-19(13-14-23(22)31-2)21-16-18-11-8-9-12-20(18)25-21/h8-9,11-14,16-17,25-26H,3-7,10,15H2,1-2H3,(H,27,28)
Chemical Name
octyl N-[[5-(1H-indol-2-yl)-2-methoxyphenyl]sulfamoyl]carbamate
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 2.1115 mL 10.5577 mL 21.1153 mL
5 mM 0.4223 mL 2.1115 mL 4.2231 mL
10 mM 0.2112 mL 1.0558 mL 2.1115 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.

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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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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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g/mol

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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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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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