Фузаровая кислота

Химические свойства

off-white to faint yellowish crystalline powder

Использование

Fusaric acid may be used as a derivatizing reagent for the quantification of hydroxysteroids and dehydroepiandrosterone (DHEA)?and sulfated DHEA in biological samples using liquid chromatography electrospray-ionization-tandem mass spectrometry (LC/ESI-MS/MS) technique.

Определение

A mycotoxin and picolinic acid, that is an antibiotic and wilting agent that causes yellowing of infected plants.

Общее описание

Fusaric acid is a novel proton-affinitive derivatizing agent, having an ionization moiety and a hydrophobic moiety. It is commonly used for the derivatization of alcohols and phenols, by liquid chromatography coupled with electrospray ionization tandem mass spectrometry (LC/ESI-MS/MS).

Опасность

Very toxic.

Профиль безопасности

A poison by ingestion, intraperitoneal, subcutaneous, and intravenous routes. When heated to decomposition it emits toxic fumes of NOx.

Методы очистки

Dissolve it in CHCl3, dry (Na2SO4), filter, evaporate and recrystallise the residue from 50 parts of pet ether (b 40-60o), CHCl3/pet ether or EtOAc, then sublime it in vacuo. The amide crystallises from MeOH with m 128.2-129.0o. The copper salt forms bluish violet crystals from H2O and has m 258-259o. [Hardegger & Nikles Helv Chim Acta 39 505 1956, Schreiber & Adam Chem Ber 93 1848 1960, NMR and MS: Tschesche & Führer Chem Ber 111 3500 1978, Beilstein 22 III/IV 764, 22/2 V 384.]