5-Methyl-1H-benzotriazole
Based on 1 Customer Validation
5-Methyl-1H-benzotriazole (5-Methylbenzotriazole) is a benzotriazole derivative, and serves as a key building block for ultraviolet absorbers and light stabilizers. 5-Methyl-1H-benzotriazole reduces the photosensitizing ability of nitrate and dissolved organic matter (DOM), enhances the persistence of microorganic pollutants, inhibits the photodegradation of DOM and drug residues, and quenches the triplet excited states of DOM and methotrexate substructures. 5-Methyl-1H-benzotriazole acts as a corrosion inhibitor for copper and copper alloys, and is present in formulations of anti-icing fluids, dishwasher detergents, aircraft deicing fluids and automotive antifreezes.
For research use only. We do not sell to patients.
- Purity: 99.96%
- CAS No.: 136-85-6
- Formula: C7H7N3
- Molecular Weight:133.15
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
Biological Activity
5-Methyl-1H-benzotriazole is widely found in industrial wastewater[1].
5-Methyl-1H-benzotriazole (0.150 μM; up to 50 h of irradiation) undergoes direct photolysis in DI water with a half-life of 14 h, and its photolysis rate slows significantly in river water, resulting in a longer half-life of 24 h[1].
5-Methyl-1H-benzotriazole (1.0 mg/L; up to 9 h) undergoes first-order photodegradation in aqueous solutions under 254 nm UV irradiation (half-life 7.1 h in pure water at pH 7), with rates decreasing with increasing pH, salinity, Fe3+ concentration, and humic acid concentration, and slight inhibition from Cu2+[2].
5-Methyl-1H-benzotriazole (1.0 mg/L; 9 h) produces two primary photoproducts, 4-methylaniline and N,N-diethylaniline-p-toluidine, via initial N-N and N-NH bond scission followed by subsequent transformation steps when exposed to UV irradiation in aqueous solutions[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 136-85-6
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Appearance Solid
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Molecular Weight 133.15
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Formula C7H7N3
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Color White to off-white
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SMILES
CC1=CC=C2NN=NC2=C1
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Synonyms
5-Methylbenzotriazole
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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 6 months -20°C 1 month
Solvent & Solubility
DMSO : 100 mg/mL (751.03 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Purity & Documentation
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Data Sheet (274 KB)
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SDS (396 KB)
- English - EN (396 KB)
- Français - FR (396 KB)
- Deutsch - DE (396 KB)
- Norwegian - NO (396 KB)
- Español - ES (396 KB)
- Swedish - SV (396 KB)
- Italian - IT (396 KB)
- Korean - KR (396 KB)
- Portuguese - PT (396 KB)
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Handling Instructions (2659 KB)
References
[1]. Chung KH, et al. The persistence and photostabilizing characteristics of benzotriazole and 5-methyl-1H-benzotriazole reduce the photochemical behavior of common photosensitizers and organic compounds in aqueous environments. Environ Sci Pollut Res Int. 2018;25(6):5911-5920. [Content Brief]
[2]. Liu YS, et al. Photo transformation of 5-methylbenzotriazole and 5-chlorobenzotriazole by UV irradiation: Influences of pH, salinity, metal species and humic acid. Environ Res. 2021;194:110678. [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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 7.5103 mL | 37.5516 mL | 75.1033 mL | 187.7582 mL |
| 5 mM | 1.5021 mL | 7.5103 mL | 15.0207 mL | 37.5516 mL | |
| 10 mM | 0.7510 mL | 3.7552 mL | 7.5103 mL | 18.7758 mL | |
| 15 mM | 0.5007 mL | 2.5034 mL | 5.0069 mL | 12.5172 mL | |
| 20 mM | 0.3755 mL | 1.8776 mL | 3.7552 mL | 9.3879 mL | |
| 25 mM | 0.3004 mL | 1.5021 mL | 3.0041 mL | 7.5103 mL | |
| 30 mM | 0.2503 mL | 1.2517 mL | 2.5034 mL | 6.2586 mL | |
| 40 mM | 0.1878 mL | 0.9388 mL | 1.8776 mL | 4.6940 mL | |
| 50 mM | 0.1502 mL | 0.7510 mL | 1.5021 mL | 3.7552 mL | |
| 60 mM | 0.1252 mL | 0.6259 mL | 1.2517 mL | 3.1293 mL | |
| 80 mM | 0.0939 mL | 0.4694 mL | 0.9388 mL | 2.3470 mL | |
| 100 mM | 0.0751 mL | 0.3755 mL | 0.7510 mL | 1.8776 mL |
5-Methyl-1H-benzotriazole Related Classifications
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