Topramezone
Based on 1 Customer Validation
Topramezone is a potent 4-hydroxyphenylpyruvate dioxygenase (4-HPPD) inhibitor. Topramezone is a herbicide, used for the post-emergence control of broadleaf and grass weeds in corn.
For research use only. We do not sell to patients.
- Purity: 99.95%
- CAS No.: 210631-68-8
- Formula: C16H17N3O5S
- Molecular Weight:363.39
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Storage:
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
Biological Activity
Topramezone (5, 10, 20, 30, 45 mg/L; 24-96 h) inhibits algal (C. vulgaris) growth by triggering oxidative stress, damaging cell morphology and photosynthetic activity during the exposure[1].
Topramezone (20 mg/L; 24, 48, 72 and 96 h) disrupts the photosynthetic system, by decreasing the content of photosynthetic pigments, and induces ROS (oxidative stress) with an increase of MDA in a time-dependent manner[1].
Topramezone (20 mg/L; 96 h) compromises the integrity of the cells, damages chloroplasts and membranes in algal cells and triggers apoptosis[1].
Topramezone (0.1 nM-0.1 mM; 30 min) exhibits selectivity and inhibits 4-HPPD (recombinant enzyme protein) activity in vitro, with IC50s of 15 nM (Setaria faberi), 23 nM (Arabidopsis thaliana), and 180 nM (Corn)[2].
topramezone (foliar-applied; containing [14C]topramezone of 0.29 μg; 24 and 48 h) is metabolized faster in corn than in the weeds[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. 210631-68-8
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Appearance Solid
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Molecular Weight 363.39
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Formula C16H17N3O5S
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Color Light yellow to yellow
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SMILES
O=C(C1=CC=C(S(=O)(C)=O)C(C2=NOCC2)=C1C)C3=C(O)N(C)N=C3
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
Solvent & Solubility
DMSO : 116.67 mg/mL (321.06 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
H2O : < 0.1 mg/mL (insoluble)
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 (protect from light). 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 (protect from light). 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 (277 KB)
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SDS (623 KB)
- English - EN (623 KB)
- Français - FR (623 KB)
- Deutsch - DE (623 KB)
- Norwegian - NO (623 KB)
- Español - ES (623 KB)
- Swedish - SV (623 KB)
- Italian - IT (623 KB)
- Korean - KR (623 KB)
- Portuguese - PT (623 KB)
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Handling Instructions (2659 KB)
References
[1]. Zhao F, et al. Evaluation of the toxicity of herbicide topramezone to Chlorella vulgaris: Oxidative stress, cell morphology and photosynthetic activity. Ecotoxicol Environ Saf. 2017 Sep. 143:129-135. [Content Brief]
[2]. Grossmann K, et al. On the mechanism of action and selectivity of the corn herbicide topramezone: a new inhibitor of 4-hydroxyphenylpyruvate dioxygenase. Pest Manag Sci. 2007 May. 63(5):429-39. [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 (protect from light). 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 | 2.7519 mL | 13.7593 mL | 27.5186 mL | 68.7966 mL |
| 5 mM | 0.5504 mL | 2.7519 mL | 5.5037 mL | 13.7593 mL | |
| 10 mM | 0.2752 mL | 1.3759 mL | 2.7519 mL | 6.8797 mL | |
| 15 mM | 0.1835 mL | 0.9173 mL | 1.8346 mL | 4.5864 mL | |
| 20 mM | 0.1376 mL | 0.6880 mL | 1.3759 mL | 3.4398 mL | |
| 25 mM | 0.1101 mL | 0.5504 mL | 1.1007 mL | 2.7519 mL | |
| 30 mM | 0.0917 mL | 0.4586 mL | 0.9173 mL | 2.2932 mL | |
| 40 mM | 0.0688 mL | 0.3440 mL | 0.6880 mL | 1.7199 mL | |
| 50 mM | 0.0550 mL | 0.2752 mL | 0.5504 mL | 1.3759 mL | |
| 60 mM | 0.0459 mL | 0.2293 mL | 0.4586 mL | 1.1466 mL | |
| 80 mM | 0.0344 mL | 0.1720 mL | 0.3440 mL | 0.8600 mL | |
| 100 mM | 0.0275 mL | 0.1376 mL | 0.2752 mL | 0.6880 mL |