4-Hydroxy-2,2,6,6-tetramethylpiperidinoxyl Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R22:Gesundheitssch?dlich beim Verschlucken.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R36/38:Reizt die Augen und die Haut.
S-S?tze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S27:Beschmutzte, getr?nkte Kleidung sofort ausziehen.
Beschreibung
TEMPOL is a piperidine nitroxide and spin label with superoxide dismutase (SOD) mimetic activity. It inhibits lipid peroxidation in rat liver microsomes with 50% inhibition of microsomal lipid peroxidation (IP
50) values of 117, 61, and 381 μM for peroxidation induced by iron plus NADPH, iron plus ascorbate, and
t-butylhydroperoxide, respectively. TEMPOL (1 mM) inhibits production of superoxide anions by 92%
via a xanthine-xanthine oxidase reaction
in vitro. It reduces mean arterial pressure and heart rate in spontaneously hypertensive rats (ED
50s = 70 and 63 μmol/kg, respectively) when administered intravenously. TEMPOL is a cell-permeable spin label that has been used to quantify intracellular oxygen in various cell types by electron spin resonance (ESR) spectroscopy.
Chemische Eigenschaften
solid
Verwenden
A free radical scavenger
Application
In biochemical research, 4-hydroxy-TEMPO has been investigated as an agent for limiting reactive oxygen species. It catalyzes the disproportionation of superoxide, facilitates hydrogen peroxide metabolism, and inhibits Fenton chemistry.4-Hydroxy-TEMPO, along with related nitroxides, are being studied for their potential antioxidant properties.On an industrial-scale 4-hydroxy-TEMPO is often present as a structural element in hindered amine light stabilizers, which are commonly used stabilizers in plastics, it is also used as a polymerisation inhibitor, particularly during the purification of styrene.
Allgemeine Beschreibung
4-Hydroxy-TEMPO is a 4-substituted 2,2,6,6-tetramethylpiperidyl-1-oxy (TEMPO) derivative. It is a low-molecular weight compound and has been proposed as superoxide dismutase mimic.
Biologische Aktivit?t
Superoxide scavenger that displays neuroprotective, anti-inflammatory and analgesic effects.
4-Hydroxy-2,2,6,6-tetramethylpiperidinoxyl Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
