Fmoc-OsuCAS# 82911-69-1 |
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Quality Control & MSDS
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| Cas No. | 82911-69-1 | SDF | Download SDF |
| PubChem ID | 134122 | Appearance | Powder |
| Formula | C19H15NO5 | M.Wt | 337.33 |
| Type of Compound | N/A | Storage | Desiccate at -20°C |
| Solubility | Soluble in water or 1% acetic acid | ||
| Chemical Name | (2,5-dioxopyrrolidin-1-yl) 9H-fluoren-9-ylmethyl carbonate | ||
| SMILES | C1CC(=O)N(C1=O)OC(=O)OCC2C3=CC=CC=C3C4=CC=CC=C24 | ||
| Standard InChIKey | WMSUFWLPZLCIHP-UHFFFAOYSA-N | ||
| Standard InChI | InChI=1S/C19H15NO5/c21-17-9-10-18(22)20(17)25-19(23)24-11-16-14-7-3-1-5-12(14)13-6-2-4-8-15(13)16/h1-8,16H,9-11H2 | ||
| 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. | ||
Fmoc-Osu Dilution Calculator
Fmoc-Osu Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 2.9645 mL | 14.8223 mL | 29.6446 mL | 59.2891 mL | 74.1114 mL |
| 5 mM | 0.5929 mL | 2.9645 mL | 5.9289 mL | 11.8578 mL | 14.8223 mL |
| 10 mM | 0.2964 mL | 1.4822 mL | 2.9645 mL | 5.9289 mL | 7.4111 mL |
| 50 mM | 0.0593 mL | 0.2964 mL | 0.5929 mL | 1.1858 mL | 1.4822 mL |
| 100 mM | 0.0296 mL | 0.1482 mL | 0.2964 mL | 0.5929 mL | 0.7411 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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Fmoc-Osu
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Formation of Fmoc-beta-alanine during Fmoc-protections with Fmoc-OSu.[Pubmed:18219706]
J Pept Sci. 2008 Jun;14(6):763-6.
During the Fmoc-protection of H-alpha-Me-Val-OH, an unknown side product was found and isolated. The characterization using various analytical methods led unambiguously to the result that Fmoc-beta-Ala-OH was formed during the reaction. The reagent Fmoc-Osu was proven to be the source of Fmoc-beta-Ala-OH, following a mechanism that involved many deprotonation and elimination steps and a Lossen-type rearrangement as key sequence. The impurity Fmoc-beta-Ala-OH was found in a variety of reactions in which Fmoc-Osu was applied, either in the reaction mixture or as a contamination of the crude product. Purification of the Fmoc-amino acid derivatives from this impurity incurred high costs and significant reductions in yield.
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