Building block for synthesis. For chiral auxiliary modification of LAH. Condensation of ester enolates and chiral imines to beta-lactams. Auxiliary, reactions of its acetal. Determination of the enantiomeric purity of ketones by acetal formation and 13C-NMR.
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Building block for synthesis. For chiral auxiliary modification of LAH. Condensation of ester enolates and chiral imines to beta-lactams. Auxiliary, reactions of its acetal. Determination of the enantiomeric purity of ketones by acetal formation and 13C-NMR.
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Photo-stable fluorescent probe (Ex: ~560nm; Em: 575nm) for the detection of nitric oxide (NO) in presence of oxygen, resulting in a triazolo-rhodamine analog (DAR-4M T) that exhibits about 840-fold greater fluorescence quantum efficiency. Suitable probe for monitoring RNS production, but not NO alone. Stable in a pH range of 4-12. Detection limit ~10nM.
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DAF-2 is highly sensitive reagent for NO detection and determination of nitric oxide synthase activity. DAF-2, however, remains essentially nonfluorescent until it reacts with the nitrosonium cation (produced by spontaneous oxidation of nitric oxide) to form a fluorescent heterocycle, which becomes trapped in the cell’s cytoplasm. This sensitive fluorescent probe has been used to identify […]
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Photo-stable fluorescent probe for the detection of nitric oxide (NO).
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Reference compound for the fluorescent (nitric oxide) NO probe DAR-4.
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Reference compound for the fluorescent (nitric oxide) NO probe DAR-M.
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Reference material for DAF-2 (CDX-D0084). Spectral data: lambdaex 495nm; lambdaem 515nm.
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Photo-stable fluorescent probe (Ex: ~565nm; Em: 580nm) for the detection of nitric oxide (NO).
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