PeptideDB

Me-Indoxam 172732-62-6

Me-Indoxam 172732-62-6

CAS No.: 172732-62-6

Me-Indoxam is a potent, cell-impermeable/penetrable inhibitor of secreted phospholipase A2 (sPLA2).
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This product is for research use only, not for human use. We do not sell to patients.

Me-Indoxam is a potent, cell-impermeable/penetrable inhibitor of secreted phospholipase A2 (sPLA2).

Physicochemical Properties


Molecular Formula C26H22N2O5
Molecular Weight 442.463286876678
Exact Mass 442.152
CAS # 172732-62-6
PubChem CID 9803388
Appearance Typically exists as solid at room temperature
LogP 3.9
Hydrogen Bond Donor Count 2
Hydrogen Bond Acceptor Count 5
Rotatable Bond Count 8
Heavy Atom Count 33
Complexity 722
Defined Atom Stereocenter Count 0
InChi Key KFJOAXDOAYZVOY-UHFFFAOYSA-N
InChi Code

InChI=1S/C26H22N2O5/c1-16-23(25(31)26(27)32)24-20(12-7-13-21(24)33-15-22(29)30)28(16)14-18-10-5-6-11-19(18)17-8-3-2-4-9-17/h2-13H,14-15H2,1H3,(H2,27,32)(H,29,30)
Chemical Name

2-[2-methyl-3-oxamoyl-1-[(2-phenylphenyl)methyl]indol-4-yl]oxyacetic acid
Synonyms

MeIndoxam; Me Indoxam; Me-Indoxam
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)

Biological Activity


ln Vitro Me-Indoxam shown varying efficacies against distinct sPLA2 isoforms in in vitro tests. Against hGIID, the IC50 of hGIIF, hGIII, and hGXIIA is larger than 2 mM; the IC50 against hGIB and hGX was between 200-600 nM; and the IC50 against hGIIA, hGIIE, and hGV were all less than 100 nM [1]. Me-Indoxam is limited to inhibiting sPLA2s cell activity while the cells are in the extracellular space [1]. It is inhibited by Me-Indoxam (0-10 μM; 30 min) [1]. -Primary human lung mast cells (HLMCs) produce more leukotriene C4 (LTC4) when stimulated by IgE [1]. Me-indoxam (0.01–10 M) does not impact the release of TNF-α and IL-6 by human lung macrophages (HLM) following pre-saponin (15 min, 37°C) with varying doses of Me-indoxam. The addition of HLM suppressed the production of TNF-α and IL-6 in a dose-dependent manner. Me-indoxam's IC50 values are 253±72 and 320±87 nM, respectively, when TNF-α and IL-6 are released[2].
References

[1]. Lung mast cells are a source of secreted phospholipases A2. J Allergy Clin Immunol. 2009 Sep;124(3):558-65, 565.e1-3.

[2]. Activation of cytokine production by secreted phospholipase A2 in human lung macrophages expressing the M-type receptor. J Immunol. 2005 Jan 1;174(1):464-74.


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 : PEG300 :Tween 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).
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 : PEG300:Tween 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).
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 2.2601 mL 11.3005 mL 22.6009 mL
5 mM 0.4520 mL 2.2601 mL 4.5202 mL
10 mM 0.2260 mL 1.1300 mL 2.2601 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.