三氟乙酸酐(TFAH)
一般危化品
三氟乙酸酐(TFAH)结构式
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常用名 | 三氟乙酸酐(TFAH) | 英文名 | Trifluoroacetic anhydride |
|---|---|---|---|---|
| CAS号 | 407-25-0 | 分子量 | 210.031 | |
| 密度 | 1.6±0.1 g/cm3 | 沸点 | 39.5±0.0 °C at 760 mmHg | |
| 分子式 | C4F6O3 | 熔点 | -63.5 °C | |
| MSDS | 中文版 美版 | 闪点 | -26.1±20.8 °C | |
| 符号 |
GHS05, GHS07 |
信号词 | Danger |
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Determination of low levels of benzodiazepines and their metabolites in urine by hollow-fiber liquid-phase microextraction (LPME) and gas chromatography-mass spectrometry (GC-MS).
J. Chromatogr. B. Analyt. Technol. Biomed. Life Sci. 975 , 24-33, (2014) In this study, it is shown a method for the determination of benzodiazepines and their main metabolites in urine samples by hollow-fiber liquid-phase microextraction (LPME) in the three-phase mode. Initially, the hydrolysis step was performed using 100 μL of ... |
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Toxicological findings in a fatal multidrug intoxication involving mephedrone.
Forensic Sci. Int. 243 , 68-73, (2014) The distribution of mephedrone in the body fluids and tissues of a subject found dead after the concomitant intake of cocaine and mephedrone is reported. Mephedrone (4-methylmethcathinone) is a designer drug of the phenethylamine family that is able to cause ... |
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Surfactant protein C metabolism in human infants and adult patients by stable isotope tracer and mass spectrometry.
Anal. Bioanal. Chem 406(25) , 6225-33, (2014) Surfactant protein C (SP-C) is deemed as the surfactant protein most specifically expressed in type II alveolar epithelial cells and plays an important role in surfactant function. SP-C turnover in humans and its meaning in the clinical context have never bee... |
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Development and validation of a GC/MS method for the simultaneous determination of levetiracetam and lamotrigine in whole blood.
J. Pharm. Biomed. Anal. 102 , 25-32, (2014) A sensitive and accurate gas chromatography-mass spectrometric method was developed and validated for the simultaneous determination of levetiracetam and lamotrigine in whole blood. A solid-phase extraction (SPE) procedure using HF Bond Elut C18 columns follo... |
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Synthesis of 2-nitroglycals from glycals using the tetrabutylammonium nitrate-trifluoroacetic anhydride-triethylamine reagent system and base-catalyzed Ferrier rearrangement of acetylated 2-nitroglycals.
J. Org. Chem. 78(17) , 8442-50, (2013) A reagent system comprising tetrabutylammonium nitrate-trifluoroacetic anhydride-triethylamine has been developed for the synthesis of 2-nitroglycals from various protected glycals. The base-catalyzed Ferrier rearrangement on tri-O-acetylated 2-nitroglycals h... |
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Design and evaluation of a novel trifluorinated imaging agent for assessment of bile acid transport using fluorine magnetic resonance imaging.
J. Pharm. Sci. 103(11) , 3782-92, (2014) Previously, we developed a trifluorinated bile acid, CA-lys-TFA, with the objective of noninvasively assessing bile acid transport in vivo using (19) F magnetic resonance imaging (MRI). CA-lys-TFA was successfully imaged in the mouse gallbladder, but was susc... |
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Rapid conversion of spirostans into furostan skeletons at room temperature.
Steroids 77(1-2) , 59-66, (2012) We report a facile protocol to obtain 22-substituted furostans and pseudosapogenins in high yields from (25R)- and (25S)-sapogenins. This method involves the treatment of the sapogenin with acetic-trifluoroacetic mixed anhydride and BF(3)·OEt(2) at room tempe... |
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Raising awareness of new psychoactive substances: chemical analysis and in vitro toxicity screening of 'legal high' packages containing synthetic cathinones.
Arch. Toxicol. 89(5) , 757-71, (2015) The world's status quo on recreational drugs has dramatically changed in recent years due to the rapid emergence of new psychoactive substances (NPS), represented by new narcotic or psychotropic drugs, in pure form or in preparation, which are not controlled ... |
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Quantification and validation of ertapenem using a liquid chromatography-tandem mass spectrometry method.
Antimicrob. Agents Chemother. 58(6) , 3481-4, (2014) Ertapenem, a carbapenem, relies on time-dependent killing. Therapeutic drug monitoring (TDM) should be considered, when ertapenem is used in specific populations, to achieve optimal bactericidal activity and optimize drug-dosing regimens. No validated liquid ... |
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A novel derivative for the assessment of urinary and salivary nitrate using gas chromatography/mass spectrometry.
Rapid Commun. Mass Spectrom. 22(24) , 4158-64, (2008) Previous gas chromatography/mass spectrometry (GC/MS) methods for determining nitrate in biological samples involve either hazardous chemicals or produce multiple isomers that can be difficult to quantitate. Modification of these methods, by the nitration of ... |