MeptyldinocapCAS# 131-72-6 |
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| Cas No. | 131-72-6 | SDF | Download SDF |
| PubChem ID | 6436020 | Appearance | Powder |
| Formula | C18H24N2O6 | M.Wt | 364.39 |
| Type of Compound | N/A | Storage | Desiccate at -20°C |
| Synonyms | 2,4-DNOPC | ||
| Solubility | DMSO : ≥ 150 mg/mL (411.65 mM) H2O : < 0.1 mg/mL (insoluble) *"≥" means soluble, but saturation unknown. | ||
| Chemical Name | (2,4-dinitro-6-octylphenyl) (E)-but-2-enoate | ||
| SMILES | CCCCCCCCC1=CC(=CC(=C1OC(=O)C=CC)[N+](=O)[O-])[N+](=O)[O-] | ||
| Standard InChIKey | PMSYHBINVYHTNN-ONNFQVAWSA-N | ||
| Standard InChI | InChI=1S/C18H24N2O6/c1-3-5-6-7-8-9-11-14-12-15(19(22)23)13-16(20(24)25)18(14)26-17(21)10-4-2/h4,10,12-13H,3,5-9,11H2,1-2H3/b10-4+ | ||
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months. Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it. |
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| About Packaging | 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial. 2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial. 3. Try to avoid loss or contamination during the experiment. |
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| Shipping Condition | Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request. | ||
| Description | Meptyldinocap (2,4-DNOPC) is a novel powdery mildew (Erysiphe necator) fungicide which shows protectant and post-infective activities. References: | |||||
Meptyldinocap Dilution Calculator
Meptyldinocap Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 2.7443 mL | 13.7216 mL | 27.4431 mL | 54.8862 mL | 68.6078 mL |
| 5 mM | 0.5489 mL | 2.7443 mL | 5.4886 mL | 10.9772 mL | 13.7216 mL |
| 10 mM | 0.2744 mL | 1.3722 mL | 2.7443 mL | 5.4886 mL | 6.8608 mL |
| 50 mM | 0.0549 mL | 0.2744 mL | 0.5489 mL | 1.0977 mL | 1.3722 mL |
| 100 mM | 0.0274 mL | 0.1372 mL | 0.2744 mL | 0.5489 mL | 0.6861 mL |
| * Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations. | |||||
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Meptyldinocap (2,4-DNOPC) is a novel powdery mildew (Erysiphe necator) fungicide which shows protectant and post-infective activities.
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A simple spectrophotometric determination of meptyldinocap by its hydrolysis.[Pubmed:23841335]
Acta Chim Slov. 2013;60(1):81-6.
A simple spectrophotometric method is proposed for the determination of Meptyldinocap (2,4-dinitro-6-octylphenyl crotonate). The method is based on the hydrolysis of Meptyldinocap by hydroxylamine solution in alkaline medium to give 2,4-dinitro-6-octylphenol (2,4-DNOP), having maximum absorption at 380 nm. The reaction is found to be instantaneous in presence of ethanol. Beer's law is valid over the concentration range of 1.2-13 microg mL(-1) with molar absorptivity and Sandell's sensitivity of 3.22 x 10(6) L mol(-1) cm(-1) and 0.0001 microg cm(-2) respectively. The limit of detection and quantification were 0.0892 and 0.2703 microg mL(-1), respectively. The tolerance limits of interfering ions are discussed. All variables were studied in order to optimize the reaction conditions. The validity of the method was checked by its simultaneous determination in fruits and water samples and the results were statistically compared with those of a reference method by applying the Student's t-test and F-test.
A fast, inexpensive, and safe method for residue analysis of meptyldinocap in different fruits by liquid chromatography/tandem mass spectrometry.[Pubmed:21313826]
J AOAC Int. 2010 Nov-Dec;93(6):1957-64.
An analytical method is reported for residue analysis of the fungicide Meptyldinocap in different fruit matrixes that involves extraction with ethyl acetate, hydrolysis of the residues with ethanolamine, and determination by LC/MS/MS. The method involves extraction of 10 g sample with 10 mL ethyl acetate; evaporation of the ethyl acetate phase to dryness, and subsequent hydrolysis of the residues to 4,6-dinitro-2-(1-methylheptyl) phenol on reaction with 1% ethanolamine. The pH of this hydrolyzed product was neutralized with formic acid and analyzed by LC/MS/MS. The hydrolysis reaction followed pseudo-first-order kinetics, and the reaction product was spectroscopically confirmed as 2-(1-methylheptyl)-4,6-dinitrophenol. The method offered > 80% recoveries at an LOQ of 10 ng/g for grape and mango, 25 ng/g for pomegranate with intralaboratory Horwitz ratio < 0.5, and measurement uncertainties < 10% at LOQ levels. Considering first-order rate kinetics, activation energy, enthalpy of activation, and entropy of activation varied as solvent > mango > grape > pomegranate. Free energy of activation at 298 K was higher than at 280 K and was similar for solvent and three matrixes at both temperatures.
Analytical method for the determination of meptyldinocap as the 2,4-dinitro-octylphenol metabolite in cucumber and soil using LC-MS/MS and a study of the residues in a Chinese cucumber field ecosystem.[Pubmed:23505246]
Pest Manag Sci. 2014 Jan;70(1):97-102.
BACKGROUND: Meptyldinocap (2,4-DNOPC) is a novel powdery mildew (Erysiphe necator) fungicide which shows protectant and post-infective activities. However, there is no reliable validated LC-MS/MS method for measuring trace levels of Meptyldinocap in cucumber. A method for the determination of 2,4-DNOPC using LC-MS/MS in cucumber and soil was developed. Additionally, the mode of degradation and the residue levels in cucumbers and soils were investigated. RESULTS: Recoveries of Meptyldinocap from cucumber and soil samples were found to be 81.4-95.1%. The limits of quantification were found to be 0.01 mg kg(-1) in cucumber and soil. The half-lives of metpyldinocap in cucumbers and soils were in the ranges of 1.6 to 2.2 days and 3.1 to 4.4 days. The harvest residue levels of Meptyldinocap in cucumbers and soils were in the ranges of below 0.01 mg kg(-1) to 0.92 mg kg(-1) , and below 0.01 mg kg(-1) to 0.53 mg kg(-1) . 5 days after application; the harvest residue levels of Meptyldinocap in cucumbers in all treatments were below 0.1 mg kg(-1) . CONCLUSION: Compared with the MRL for Meptyldinocap in cucumber (0.1 mg kg(-1) ), set by the EU, it is suggested that there should be a pre-harvest interval of 5 days at the recommended rate and times before harvest of cucumber.
[Determination of meptyldinocap residues in vegetable and fruit by liquid chromatography-tandem mass spectrometry].[Pubmed:23285981]
Se Pu. 2012 Sep;30(9):962-5.
A method was developed for the determination of the residues of Meptyldinocap (2,4-dinitro-6-(1-methylheptyl) phenyl crotonate, 2,4-DNOPC) as 2, 4-dinitrooctylphenol (2,4-dinitro-6-(1-methylheptyl) phenol, 2,4-DNOP), which is a hydrolysate of 2,4-DNOPC, in six vegetable and fruit by using liquid chromatography coupled with electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS). The residues of 2,4-DNOPC in vegetable and fruit samples were extracted by the mixture of acetone, methanol and hydrochloric acid, then extracted by liquid-liquid partitioning, hydrolyzed under alkaline condition with ultrasonication, and extracted again by liquid-liquid partitioning, then analyzed by using LC-MS/MS in multiple reaction monitoring (MRM) mode via negative electrospray ionization with an Agilent ZORBAX SB-C, column. The method was validated at four fortification levels in vegetable and fruit. The validation results were as follows: the recoveries of 2,4-DNOPC in cabbages were from 89.7% to 93.3% (the relative standard deviations (RSD) of 6. 3% - 8.5%), in cucumbers from 87.7% to 95.1% (RSD of 5.8% -10.4%), in tomatoes from 89.3% to 96.0% (RSD of 6.8% -9.2%), in apples from 92.0% to 98.3% (RSD of 5.1% - 10.3%), in pears from 89.0% to 95.0% (RSD of 5.3% -10.2%), in grapes from 81.2% to 95.8% (RSD of 5.8% - 10.4%). The limits of quantification of 2,4-DNOPC in all the test samples were 0. 01 mg/kg. The results showed that the method is simple, rapid, and is characterized with acceptable sensitivity and accuracy to meet the requirements of the pesticide residue analysis. This method is applicable to confirm the residues of Meptyldinocap in vegetable and fruit samples.
