DL-Arginine
Based on 4 publication(s) in Google Scholar
DL-Arginine is the racemic compound of L-Arginine (HY-N0455) and D-Arginine (HY-W016781). Arginine is an essential amino acid that requires additional supplementation in traumatic or diseased conditions. Arginine is involved in T cell activation, proliferation, and differentiation, and affects the function of immune cells.
For research use only. We do not sell to patients.
- Purity : 98.0%
- CAS No.: 7200-25-1
- Formula: C6H14N4O2
- Molecular Weight:174.20
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year
Publications Citing Use of MedChemExpress (MCE) DL-Arginine
MoreAll Endogenous Metabolite Isoforms
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Biological Activity
Description
In Vitro
DL-Arginine can be used as a nitrogen source that added in the culture medium for requirement of cells/bacteria growth[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. 7200-25-1
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Appearance Solid
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Molecular Weight 174.20
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Formula C6H14N4O2
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Color White to off-white
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SMILES
NC(CCCNC(N)=N)C(O)=O
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Synonyms
(±)-Arginine
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Structure Classification
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Initial Source
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 2 years -20°C 1 year
Publications (4)
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Journal Impact Factor
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Most Recent
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Microbiome
Species-specific enhancement of enterohemorrhagic E. coli pathogenesis mediated by microbiome metabolites. [Abstract]2019 Mar 20;7(1):43. PMID: 30890187 -
Amino Acids
Identification of amino acids metabolomic profiling in human plasma distinguishes lupus nephritis from systemic lupus erythematosus. [Abstract]2024 Sep 18;56(1):56. PMID: 39292313 -
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Solvent & Solubility
In Vitro:
H2O : 125 mg/mL (717.57 mM; Need ultrasonic)
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
In Vivo:
For the following dissolution methods, please prepare the working solution directly:
It is recommended to prepare fresh solutions and use them promptly within a short period of time.
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: PBS
Solubility: 50 mg/mL (287.03 mM); Clear solution; Need ultrasonic
Protocols
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Research Protocol for Cancer Immunology
Cancer immunology studies how the immune system recognizes, suppresses, edits, or fails to eliminate malignant cells through tumor antigen release, antigen presentation, T-cell priming, immune trafficking, tumor-cell killing, and feedback inhibition in the tumor microenvironment. The cancer-immunity cycle links tumor antigenicity, dendritic-cell priming, CD8+ T-cell infiltration, cytotoxic function, and immune-checkpoint regulation to tumor rejection or immune escape. Immune-checkpoint pathways such as PD-1/PD-L1 and CTLA-4 suppress antitumor T-cell activity and can be therapeutically blocked, but many tumors remain resistant because of poor antigen presentation, weak T-cell infiltration, suppressive myeloid cells, regulatory T cells, and tumor-intrinsic immune-exclusion programs. Unresolved questions include which immune-cell states predict response, how tumor-intrinsic pathways exclude immune cells, how myeloid suppression limits checkpoint blockade, and which combination strategies
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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 (268 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| H2O | 1 mM | 5.7405 mL | 28.7026 mL | 57.4053 mL | 143.5132 mL |
| 5 mM | 1.1481 mL | 5.7405 mL | 11.4811 mL | 28.7026 mL | |
| 10 mM | 0.5741 mL | 2.8703 mL | 5.7405 mL | 14.3513 mL | |
| 15 mM | 0.3827 mL | 1.9135 mL | 3.8270 mL | 9.5675 mL | |
| 20 mM | 0.2870 mL | 1.4351 mL | 2.8703 mL | 7.1757 mL | |
| 25 mM | 0.2296 mL | 1.1481 mL | 2.2962 mL | 5.7405 mL | |
| 30 mM | 0.1914 mL | 0.9568 mL | 1.9135 mL | 4.7838 mL | |
| 40 mM | 0.1435 mL | 0.7176 mL | 1.4351 mL | 3.5878 mL | |
| 50 mM | 0.1148 mL | 0.5741 mL | 1.1481 mL | 2.8703 mL | |
| 60 mM | 0.0957 mL | 0.4784 mL | 0.9568 mL | 2.3919 mL | |
| 80 mM | 0.0718 mL | 0.3588 mL | 0.7176 mL | 1.7939 mL | |
| 100 mM | 0.0574 mL | 0.2870 mL | 0.5741 mL | 1.4351 mL |
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.