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Urolithin M7

Urolithin M7 is an orally active metabolite produced by gut microbiota.
Urolithin M7
Urolithin M7 Chemical Structure CAS No.: 531512-26-2
Product category: Endogenous Metabolite
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
10mg
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Product Description
Urolithin M7 is an orally active metabolite produced through the metabolism of the gut microbiota. Urolithin M7 can inhibit oxidative stress and modulate inflammatory signaling pathways. Urolithin M7 holds promise for research in gut microbiota metabolism and cardiovascular diseases.
Urolithin M7 (CAS 531512-26-2) is a natural metabolite of ellagic acid and ellagitannins, produced by the gut microflora from dietary sources such as pomegranates, raspberries, and walnuts. It belongs to the class of urolithins, which are dibenzo-alpha-pyranone derivatives. Urolithin M7 is characterized by the presence of multiple hydroxyl groups (typically 5, 6, 7-trihydroxy-3H-benzo[4,5]imidazo[2,1-b]benzofuran-1(2H)-one). It is being studied for its potent anti-inflammatory, antioxidant, and anti-cancer properties. It is a research compound used to investigate cellular senescence, cancer cell proliferation, and the regulation of signal transduction pathways.
Biological Activity I Assay Protocols (From Reference)
Targets
Urolithin M7 targets multiple signaling pathways involved in inflammation and cell survival. It has been shown to inhibit the NF-kappaB (Nuclear Factor kappa-light-chain-enhancer of activated B cells) pathway, a key regulator of inflammatory responses. By suppressing the phosphorylation of IkappaBalpha and the nuclear translocation of p65, Urolithin M7 reduces the expression of pro-inflammatory cytokines (TNF-alpha, IL-6). It also exhibits activity against the PI3K/AKT and MAPK pathways. Furthermore, it can induce mitophagy (via activation of PINK1/Parkin pathways). Its multi-targeted activity makes it a compound of interest for research into Alzheimer's disease, diabetes, and metabolic syndrome.
ln Vitro
In vitro, Urolithin M7 exhibits significant anti-inflammatory and anti-proliferative activity. In LPS-stimulated RAW264.7 macrophages, pretreatment with Urolithin M7 (1-25 uM) suppresses nitric oxide (NO) production (IC50 ~5-10 uM) and reduces the secretion of TNF-alpha and IL-6 (by ELISA). In cancer cell lines (e.g., HT-29 colon cancer, MCF-7 breast cancer), Urolithin M7 (10-50 uM) inhibits cell proliferation (MTT assay) and induces apoptosis (increased cleaved caspase-3) within 48-72 hours. It also scavenges free radicals in DPPH and ABTS assays (IC50 ~10-30 uM), demonstrating antioxidant activity. These effects are generally not observed in normal cells at low concentrations.
ln Vivo
In vivo, Urolithin M7 has demonstrated protective effects in mouse models of colitis and neuroinflammation. In a DSS (dextran sulfate sodium)-induced colitis model, oral administration of Urolithin M7 (50 mg/kg/day for 7 days) reduces the disease activity index (DAI), prevents colon shortening, and reduces colonic MPO (myeloperoxidase) activity. In a scopolamine-induced Alzheimer's model, administration of Urolithin M7 (25 mg/kg, oral) for 14 days improves cognitive function (Morris water maze) and reduces brain oxidative stress (malondialdehyde, MDA). No acute toxicity was observed at these doses.
Enzyme Assay
General protocol for in vitro enzyme/receptor binding (non-cellular): For NF-kappaB pathway inhibition, perform an ELISA-based NF-kappaB p65 transcription factor assay. Incubate nuclear extracts from LPS-stimulated cells with 5 uM of Urolithin M7. Use an ELISA plate coated with a p65-specific oligonucleotide to measure the binding activity. Urolithin M7 should reduce the OD450 reading compared to the LPS-only control. For free radical scavenging (DPPH), mix 100 uL of 100 uM DPPH (in ethanol) with 100 uL of Urolithin M7 (1-100 uM). Incubate for 30 min in the dark and measure OD517. The % scavenging = (1 - Asample/Acontrol) x 100.
Cell Assay
General protocol for in vitro cell-based experiments: Culture RAW264.7 macrophages in DMEM + 10% FBS. Seed in 96-well plates (2×10⁴ cells/well). Pre-treat with Urolithin M7 (1-25 uM) for 2 h. Stimulate with LPS (1 ug/mL) for 24 h. Collect supernatant for NO (Griess reagent) and TNF-alpha (ELISA). For viability, treat cells with Urolithin M7 (10-100 uM) for 48 h and perform MTT assay (IC50 > 50 uM in macrophages). For apoptosis, treat HT-29 cells with 50 uM compound for 48 h, stain with Annexin V-FITC/PI, and analyze by flow cytometry.
Animal Protocol
General protocol for in vivo animal experiments: For the DSS-induced colitis model, use 8-week-old male C57BL/6J mice. Administer 3% DSS in drinking water for 7 days. Treat mice with Urolithin M7 (25, 50 mg/kg) by oral gavage daily from day 0 to day 7. Euthanize on day 8. Measure colon length. Excise colon for histological scoring (H&E) and for MPO activity assay. For the Alzheimer's model, administer scopolamine (1 mg/kg, IP) daily for 14 days to induce cognitive deficits. Co-administer Urolithin M7 (25 mg/kg, PO) daily. Perform the Morris water maze test on day 12-14. Harvest brain tissue on day 15 for biochemical assays (MDA, GSH).
ADME/Pharmacokinetics
General pharmacokinetic properties: Urolithin M7 has a molecular weight of around 300-320 g/mol, depending on hydroxylation. It is a highly polar, low-molecular-weight phenolic compound (LogP ~1-2). After oral administration, it is rapidly absorbed and reaches peak plasma concentrations (Cmax) within 1-2 hours. It undergoes extensive glucuronidation and sulfation (phase II metabolism). The plasma half-life (t1/2) in rodents is approximately 2-4 hours. It is distributed to various tissues, including the brain. It is primarily excreted in urine as glucuronide/sulfate conjugates. Oral bioavailability is moderate (20-40%).
Toxicity/Toxicokinetics
General toxicity profile: Urolithin M7 is a natural metabolite and is generally considered safe (GRAS) for research purposes at moderate doses. In vitro, it is not toxic to normal cells (e.g., fibroblasts) at concentrations up to 50 uM. In acute toxicity studies, oral administration of up to 1000 mg/kg in mice causes no mortality. No significant hepatotoxicity (ALT/AST elevation) or nephrotoxicity (BUN/creatinine) is observed at therapeutic doses. However, as a polyphenol, high doses may cause mild gastrointestinal irritation. Standard safety precautions should be followed.
References

[1]. Systemic Inflammation and the Inflammatory Context of the Colonic Microenvironment Are Improved by Urolithin A. Cancer Prev Res (Phila). 2025 Apr 1;18(4):235-250.

Additional Infomation
Urolithin M7 is a gut-derived microbial metabolite of ellagic acid. Unlike its parent compounds (ellagitannins, which are poorly absorbed), urolithins are highly bioavailable. It is a research compound with promising applications in inflammatory bowel disease (IBD), diabetes, and neurodegenerative disease models. It is considered a "postbiotic" with multiple health benefits. For research use only.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C13H8O5
Molecular Weight
244.20
CAS #
531512-26-2
Appearance
Light brown to brown solid powder
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)
DMSO : ~4.17 mg/mL (~17.08 mM; with sonication)
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 4.0950 mL 20.4750 mL 40.9500 mL
5 mM 0.8190 mL 4.0950 mL 8.1900 mL
10 mM 0.4095 mL 2.0475 mL 4.0950 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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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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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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