[BMIM]Cl
Based on 1 Customer Validation
[BMIM]Cl (1-butyl-3-methylimidazolium chloride) is an alkyl-imidazolium chloride compound and a persistent aquatic pollutant. [BMIM]Cl exhibits antimicrobial activity against S. aureus (MIC = 25 mM), E. coli (MIC = 50 mM), and P. aeruginosa (MIC = 100 mM). It possesses moderate membrane permeability and cytotoxicity, directly affecting microorganisms and mammalian cells at high concentrations, but can inhibit the function of complex ecosystems (e.g., anaerobic digestion) even at environmentally relevant low concentrations by disrupting microbial community structures. [BMIM]Cl can be used in research related to bacterial infections.
For research use only. We do not sell to patients.
- Purity : 99.91%
- CAS No.: 79917-90-1
- Formula: C8H15ClN2
- Molecular Weight:174.67
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Storage:
Store at room temperature, keep dry and cool.
In solvent -80°C, 1 year , -20°C, 6 months
Biological Activity
Description
Cellular Effect
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| Caco-2 | IC50 |
18.85 mM
Compound: [BMIM][Cl]
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Cytotoxicity against human Caco2 cells after 24 hrs by MTT assay
Cytotoxicity against human Caco2 cells after 24 hrs by MTT assay
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[PMID: 26617961] |
In Vitro
[BMIM]Cl (0-200 mM; 18 hours) inhibits the growth of E. coli with an MIC of 50 mM, S. aureus with an MIC of 25 mM, and P. aeruginosa with an MIC of 100 mM[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
Chemical Information
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CAS No. 79917-90-1
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Appearance Solid
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Molecular Weight 174.67
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Formula C8H15ClN2
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Color White to off-white
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SMILES
CN1C=C[N+](CCCC)=C1.[Cl-]
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Synonyms
1-Butyl-3-methylimidazolium chloride
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Store at room temperature, keep dry and cool
In solvent -80°C 1 year -20°C 6 months
Solvent & Solubility
In Vitro:
DMSO : ≥ 200 mg/mL (1145.02 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
* "≥" means soluble, but saturation unknown.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
In Vivo:
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 5 mg/mL (28.63 mM); Clear solution
This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 5 mg/mL (28.63 mM); Clear solution
This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL.
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Protocols
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Research Protocol for Infectious Diseases
Infectious-disease experiments test how pathogens interact with host barriers, innate immune receptors, inflammatory signaling, pathogen replication, and tissue injury; pattern-recognition receptors such as TLRs, RIG-I-like receptors, NOD-like receptors, and inflammasomes detect microbial molecules and activate NF-κB, interferon, and cytokine responses. The central hypothesis is that infection severity reflects the balance between pathogen burden and host response: protective inflammation restricts pathogen growth, whereas excessive or mislocalized inflammation contributes to tissue damage and disease phenotype. Unresolved questions include which host pathways are protective versus pathogenic, why some infection models fail to translate to human disease, and which combined readouts best predict clinically relevant infection outcomes.
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Cell Cytotoxicity Assay
Cytotoxicity assays are usually based on the assessment of cell membrane damage, which can also be indirectly detected by measuring cell viability. Detection methods include MTT assay, CKK-8 assay, LDH assay and ATP assay, etc.
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Mammalian live/dead viability and cytotoxicity staining
Live/dead viability and cytotoxicity staining assays are based on the simultaneous detection of intracellular esterase activity in metabolically active (viable) cells and membrane integrity loss in non-viable cells. In commonly used dual-staining approaches, membrane-permeant fluorogenic substrates are converted by intracellular esterases into fluorescent products in live cells, while impermeant DNA-binding dyes selectively enter cells with compromised plasma membranes and label nucleic acids in dead or dying cells, enabling discrimination between viable and non-viable populations by fluorescence microscopy or flow cytometry.
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Transepithelial/transendothelial electrical resistance assay
TEER measures electrical resistance across epithelial or endothelial monolayers cultured on permeable supports, and the readout reflects ionic conductance through the cell barrier, especially the paracellular pathway regulated by junctional integrity. TEER can be measured without destroying the monolayer and is commonly used before or during transport, permeability, barrier-disruption, and barrier-maturation experiments. TEER values are influenced by biological maturation and technical conditions; reported factors include temperature, medium formulation, passage number, electrode geometry, membrane properties, and junctional length during early monolayer maturation. Therefore, TEER should be interpreted with blank-insert subtraction, area normalization, repeated readings, and, when possible, orthogonal barrier readouts such as FITC-dextran flux or tight-junction staining.
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Research Protocol for Microbiome Analysis
Microbiome analysis characterizes microbial communities in biological or environmental samples by measuring community composition, diversity, taxonomic structure, functional potential, and associations with host or environmental phenotypes. 16S rRNA gene amplicon sequencing is commonly used for bacterial and archaeal taxonomic profiling, while shotgun metagenomics provides higher taxonomic resolution and direct functional information, including microbial genes, pathways, viruses, fungi, and antimicrobial-resistance genes when sequencing depth and host-DNA contamination are adequately controlled. Microbiome results are strongly affected by sample collection, storage, DNA extraction, contamination, sequencing method, reference database, and bioinformatic pipeline; therefore, standardized protocols, negative controls, mock communities, and transparent analysis workflows are required. Unresolved issues include low-biomass contamination, compositional-data bias, inconsistent species-level c
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Cell Viability Determination by MTT Colorimetric Assay
The following protocol uses the MTT colorimetric assay as a classic literature-established method for assessing cell viability/metabolic activity in cultured mammalian cells. MTT[3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] is reduced by metabolically active cells to a colored formazan product; the amount of formazan is quantified spectrophotometrically and provides an indirect measure of metabolically active viable cells. Importantly, MTT reduction reflects cellular oxidoreductase/metabolic activity rather than an absolute direct count of living cells, so changes in cellular metabolism can alter the signal independently of cell number.
Purity & Documentation
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Data Sheet (271 KB)
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SDS (624 KB)
- English - EN (624 KB)
- Français - FR (624 KB)
- Deutsch - DE (624 KB)
- Norwegian - NO (624 KB)
- Español - ES (624 KB)
- Swedish - SV (624 KB)
- Italian - IT (624 KB)
- Korean - KR (624 KB)
- Portuguese - PT (624 KB)
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Handling Instructions (2659 KB)
References
[1]. Cook K, et al. Correlating Lipid Membrane Permeabilities of Imidazolium Ionic Liquids with their Cytotoxicities on Yeast, Bacterial, and Mammalian Cells. Biomolecules. 2019;9(6):251. Published 2019 Jun 25. [Content Brief]
[2]. Lu Q, et al. 1-Butyl-3-methylimidazolium Chloride Affects Anaerobic Digestion through Altering Organics Transformation, Cell Viability, and Microbial Community. Environ Sci Technol. 2023;57(8):3145-3155. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 5.7251 mL | 28.6254 mL | 57.2508 mL | 143.1270 mL |
| 5 mM | 1.1450 mL | 5.7251 mL | 11.4502 mL | 28.6254 mL | |
| 10 mM | 0.5725 mL | 2.8625 mL | 5.7251 mL | 14.3127 mL | |
| 15 mM | 0.3817 mL | 1.9084 mL | 3.8167 mL | 9.5418 mL | |
| 20 mM | 0.2863 mL | 1.4313 mL | 2.8625 mL | 7.1564 mL | |
| 25 mM | 0.2290 mL | 1.1450 mL | 2.2900 mL | 5.7251 mL | |
| 30 mM | 0.1908 mL | 0.9542 mL | 1.9084 mL | 4.7709 mL | |
| 40 mM | 0.1431 mL | 0.7156 mL | 1.4313 mL | 3.5782 mL | |
| 50 mM | 0.1145 mL | 0.5725 mL | 1.1450 mL | 2.8625 mL | |
| 60 mM | 0.0954 mL | 0.4771 mL | 0.9542 mL | 2.3855 mL | |
| 80 mM | 0.0716 mL | 0.3578 mL | 0.7156 mL | 1.7891 mL | |
| 100 mM | 0.0573 mL | 0.2863 mL | 0.5725 mL | 1.4313 mL |