O-(2,3,4,5,6-PENTAFLUOROBENZYL)HYDROXYLAMINE HYDROCHLORIDE
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O-(2,3,4,5,6-PENTAFLUOROBENZYL)HYDROXYLAMINE HYDROCHLORIDE ??
- ???
- 227 °C (subl.)(lit.)
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- Inert atmosphere,Room Temperature
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- H2O: 5%, ??
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- powder to crystal
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- ??????(pH)
- pH(5g/l, 25℃) : 2.0～3.0
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- ?? ?????.
- BRN
- 4031190
- CAS ??????
- 57981-02-9(CAS DataBase Reference)
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- ?? ? ???? ?? (GHS)
O-(2,3,4,5,6-PENTAFLUOROBENZYL)HYDROXYLAMINE HYDROCHLORIDE C??? ??, ??, ??
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White powder??
O-(2,3,4,5,6-Pentafluorobenzyl)hydroxylamine hydrochloride is used in the preparation of oximes of steroids having keto group. It is used as a derivatization reagent in the determination of thromboxane B2, prostaglandins, amygdalin and a variety of aldehydes, ketones and acids. It is a versatile reagent utilized for the detection of carbonyl-containing compounds by gas chromatography (GC), gas chromatography mass spectrometry (GC-MS) and other methods. As a derivatization reagent, it is also used for EC/LC analysis of keto-steroids and carbohydrates.?? ??
O-(2,3,4,5,6-Pentafluorobenzyl)hydroxylamine hydrochloride (PFBHA.HCl) is a derivatizing agent.Purification Methods
Recrystallise the salt from EtOH to form colourless leaflets. Drying the compound at high vacuum and elevated temperature will result in losses by sublimation. [Youngdale J Pharm Sci 65 625 1976, Wehner & Handke J Chromatog 177 237 1979, Nambara et al. give incorrect m as 115-116o J Chromatogr 114 81 1975.]O-(2,3,4,5,6-PENTAFLUOROBENZYL)HYDROXYLAMINE HYDROCHLORIDE ?? ?? ? ???
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O-(2,3,4,5,6-PENTAFLUOROBENZYL)HYDROXYLAMINE HYDROCHLORIDE ?? ??
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O-(2,3,4,5,6-PENTAFLUOROBENZYL)HYDROXYLAMINE HYDROCHLORIDE ?? ??:
?????????(2,6-) ??????(2,4-)??? 3,4-?????????? ?????? ?? ?????? ??????? ???????(2,4-)
2,3,4-Trifluorobenzyl alcohol
O-Benzylhydroxylamine hydrochloride
1,2,3,5-Tetrafluorobenzene
2,3,4,5,6-Pentafluorobenzyl alcohol
2,3,4,5-Tetrafluorobenzyl alcohol
2,3,4,5,6-PENTAFLUOROTOLUENE
2,3-Difluorobenzyl alcohol
2,3,5-Trifluorobenzyl alcohol
2,3,4,6-TETRAFLUOROBENZYL ALCOHOL
2,3,6-TRIFLUOROBENZYL ALCOHOL
2,5-Difluorobenzyl alcohol