EscusideCAS# 478182-19-3 |
| Cas No. | 478182-19-3 | SDF | File under preparation. |
| PubChem ID | N/A | Appearance | Powder |
| Formula | C32H38O19 | M.Wt | 726.6 |
| Type of Compound | N/A | Storage | Desiccate at -20°C |
| Solubility | Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. | ||
| 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. | ||
Quality Control & MSDS
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Escuside Dilution Calculator
Escuside Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 1.3763 mL | 6.8814 mL | 13.7627 mL | 27.5255 mL | 34.4068 mL |
| 5 mM | 0.2753 mL | 1.3763 mL | 2.7525 mL | 5.5051 mL | 6.8814 mL |
| 10 mM | 0.1376 mL | 0.6881 mL | 1.3763 mL | 2.7525 mL | 3.4407 mL |
| 50 mM | 0.0275 mL | 0.1376 mL | 0.2753 mL | 0.5505 mL | 0.6881 mL |
| 100 mM | 0.0138 mL | 0.0688 mL | 0.1376 mL | 0.2753 mL | 0.3441 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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Simultaneous analysis of coumarins and secoiridoids in Cortex Fraxini by high-performance liquid chromatography-diode array detection-electrospray ionization tandem mass spectrometry.[Pubmed:18258402]
J Pharm Biomed Anal. 2008 May 12;47(1):39-46.
A high-performance liquid chromatography-diode array UV detection-electrospray ionization tandem mass spectrometry (HPLC-DAD-ESI-MS) method was developed and validated for the simultaneous analysis of seven major constituents in Cortex Fraxini, including esculin, esculetin, fraxetin, fraxin, Escuside, oleuropein and ligustroside. The contents of the seven constituents were determined by using HPLC-DAD, and the chemical structures of these constituents were identified by using HPLC-DAD-ESI-MS method. The separation was performed on an Agilent Zorbax SB-C18 column (250 mm x 4.6 mm i.d., 5 microm) with gradient elution of acetonitrile and 0.3% aqueous acetic acid within 40 min. Detection was performed at 254 nm. The calibration curves showed good linearity (r2>0.9992). The limits of detection (LOD) ranged from 1.07 to 3.19 ng/ml and limits of quantification (LOQ) ranged from 2.79 to 12.75 ng/ml, respectively. The intra- and inter-day precision was less than 5% and the accuracy was ranging from 96.49% to 103.55%. The recovery of the assay was in the range of 97.61-104.36%. The method was successfully applied to the quantification of the seven constituents in different samples of Cortex Fraxini. The results indicated that the developed method could be considered to be a simple, rapid and reliable method for the quality evaluation of Cortex Fraxini.
Escuside, a new coumarin-secoiridoid from Fraxinus ornus bark.[Pubmed:12165333]
Fitoterapia. 2002 Aug;73(5):386-9.
A new coumarin-secoiridoid, named Escuside, was isolated from the bark of Fraxinus ornus and its structure determined by spectroscopic methods.
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