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TRIM

Cat No.:V16813 Purity: ≥98%
TRIM is a potent inhibitor of nitric oxide synthase.
TRIM
TRIM Chemical Structure CAS No.: 25371-96-4
Product category: New1
This product is for research use only, not for human use. We do not sell to patients.
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Product Description
TRIM is a potent inhibitor of nitric oxide synthase. TRIM inhibits mouse cerebellar nNOS and rat lung iNOS in vitro with IC50s of 28.2 and 27.0 µM, respectively. Has antidepressant and anxiolytic (anti-anxiety) effects.
TRIM (1-(2-Trifluoromethylphenyl)imidazole) is a small-molecule nitric oxide synthase (NOS) inhibitor belonging to the imidazole class of heterocyclic compounds. It is a potent inhibitor of neuronal NOS (nNOS) and inducible NOS (iNOS), with much lower affinity for the endothelial isoform (eNOS). TRIM is employed as a pharmacological tool in preclinical research investigating the role of nitric oxide (NO) in central nervous system (CNS) disorders, pain pathways, and inflammatory processes. It has also demonstrated anxiolytic and antidepressant properties.
Biological Activity I Assay Protocols (From Reference)
Targets
TRIM targets nitric oxide synthase enzymes, specifically the neuronal (nNOS) and inducible (iNOS) isoforms. It acts as a potent inhibitor, binding to these enzymes and blocking their activity. The compound displays IC50 values of 28.2 μM for nNOS (mouse cerebellum) and 27.0 μM for iNOS (rat lung). In contrast, it has a much lower affinity for the endothelial isoform (eNOS), with an IC50 of 1057.5 μM. This selectivity for nNOS and iNOS over eNOS makes TRIM a valuable tool for studying the specific roles of these isoforms in various physiological and pathological processes, without significantly affecting the cardiovascular functions mediated by eNOS.
ln Vitro
TRIM has an IC50 of 1057.5 µM, making it a comparatively mild inhibitor of eNOS[1].
In vitro, TRIM has been shown to be a potent inhibitor of nNOS and iNOS activity. In cell-based assays, it inhibits the production of nitric oxide (NO) from cells that express these enzymes. For example, in activated macrophages, which express iNOS, TRIM treatment leads to a reduction in NO production. Similarly, in neuronal cell cultures, it inhibits nNOS activity. These in vitro studies confirm the compound's mechanism of action and its selectivity profile. The compound's ability to inhibit NO production in the brain is relevant to its anxiolytic and antidepressant effects observed in vivo.
ln Vivo
In vivo, TRIM has been shown to possess antinociceptive (pain-relieving), anxiolytic, and antidepressant properties. These effects are attributed to its ability to inhibit nNOS in the central nervous system, thereby modulating the NO signaling pathway, which is involved in pain perception, anxiety, and mood regulation. The compound has been studied in various rodent models of pain, anxiety, and depression. Its selectivity for nNOS and iNOS over eNOS is believed to contribute to its favorable side-effect profile, as it does not significantly affect blood pressure regulation.
Enzyme Assay
In vitro enzyme or receptor binding (non-cell) assays for TRIM involve measuring its inhibition of NOS enzymatic activity. The assay uses a purified recombinant NOS enzyme (nNOS, iNOS, or eNOS) and a substrate, such as L-arginine, in the presence of cofactors (NADPH, tetrahydrobiopterin, flavin adenine dinucleotide, and flavin mononucleotide). The production of nitric oxide (NO) or citrulline is measured using a colorimetric, fluorometric, or radiometric method. The compound is incubated with the enzyme and substrate at varying concentrations, and the IC50 value is determined. For TRIM, IC50 values of 28.2 μM for nNOS and 27.0 μM for iNOS have been reported.
Cell Assay
In vitro cell-based assays for TRIM are performed using cell lines that express NOS isoforms. For iNOS studies, macrophages (e.g., RAW 264.7 cells) are stimulated with lipopolysaccharide (LPS) and interferon-gamma (IFN-γ) to induce iNOS expression. Cells are then treated with TRIM, and the production of nitrite (a stable metabolite of NO) in the culture medium is measured using the Griess assay. For nNOS studies, neuronal cell lines or primary neuronal cultures are used. The compound's effects on NO production and cell viability are assessed.
Animal Protocol
In vivo animal experiments for TRIM are conducted using rodent models of pain, anxiety, and depression. For antinociceptive studies, the formalin test or the tail-flick test is used. For anxiolytic studies, the elevated plus maze or the light-dark box test is used. For antidepressant studies, the forced swim test or the tail suspension test is used. The compound is typically administered intraperitoneally or orally, and its effects on behavior are measured. The involvement of the NO pathway is confirmed by co-administration with L-arginine, which can reverse the effects of TRIM.
ADME/Pharmacokinetics
Pharmacokinetic (PK) properties of TRIM have been characterized to support its use as a research tool. The compound has a molecular weight of 212.2 and a molecular formula of C10H7F3N2. It is soluble in DMSO at a concentration of 10.61 mg/mL. The compound is typically administered intraperitoneally or orally in animal studies. Specific PK parameters, such as half-life and bioavailability, are determined in preclinical studies via LC-MS/MS analysis of plasma and brain tissue samples. The compound's ability to cross the blood-brain barrier is important for its effects on the central nervous system.
Toxicity/Toxicokinetics
Toxicology (toxicology) data for TRIM are characteristic of a research compound. As an NOS inhibitor, its safety profile is an important consideration. The compound's selectivity for nNOS and iNOS over eNOS is expected to reduce the risk of cardiovascular side effects, such as hypertension. However, inhibition of nNOS in the brain may have central nervous system effects. The compound is generally well-tolerated at effective doses in preclinical studies. Standard toxicology studies are conducted to assess its safety profile.
References

[1]. The antinociceptive effect of 1-(2-trifluoromethylphenyl) imidazole (TRIM), a potent inhibitor of neuronal nitric oxide synthase in vitro, in the mouse. Br J Pharmacol. 1995;116(5):2349-2350.

[2]. Antidepressant- and anxiolytic-like effects of selective neuronal NOS inhibitor 1-(2-trifluoromethylphenyl)-imidazole in mice. Behav Brain Res. 2003;140(1-2):141-147.

Additional Infomation
1-[2-(trifluoromethyl)phenyl]imidazolium is a member of the imidazolium class of compounds.
Other information: TRIM is a research compound used to study the role of nitric oxide in the central nervous system, pain pathways, and inflammatory processes. It is a valuable tool for investigating the therapeutic potential of NOS inhibitors in conditions such as chronic pain, anxiety, depression, and neuroinflammation. The compound is available from chemical suppliers for preclinical research purposes. Its CAS number is 25371-96-4.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C10H7F3N2
Molecular Weight
212.1712
Exact Mass
212.056
CAS #
25371-96-4
PubChem CID
1359
Appearance
White to off-white solid powder
Density
1.3±0.1 g/cm3
Boiling Point
288.3±40.0 °C at 760 mmHg
Melting Point
43 °C
Flash Point
128.2±27.3 °C
Vapour Pressure
0.0±0.6 mmHg at 25°C
Index of Refraction
1.522
LogP
2.55
Hydrogen Bond Donor Count
0
Hydrogen Bond Acceptor Count
4
Rotatable Bond Count
1
Heavy Atom Count
15
Complexity
217
Defined Atom Stereocenter Count
0
InChi Key
WZBWBNCQUTXYEL-UHFFFAOYSA-N
InChi Code
InChI=1S/C10H7F3N2/c11-10(12,13)8-3-1-2-4-9(8)15-6-5-14-7-15/h1-7H
Chemical Name
1-[2-(trifluoromethyl)phenyl]imidazole
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

Note: Please store this product in a sealed and protected environment, avoid exposure to moisture.
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 : ~250 mg/mL (~1178.30 mM)
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 4.7132 mL 23.5660 mL 47.1320 mL
5 mM 0.9426 mL 4.7132 mL 9.4264 mL
10 mM 0.4713 mL 2.3566 mL 4.7132 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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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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  • 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:
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  • 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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