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Paraxanthine-d6
本产品不向个人销售，仅用作科学研究，不用于任何人体实验及非科研性质的动物实验。
Paraxanthine-d6图片
CAS NO:117490-41-2
包装与价格：
包装价格(元)
500 μg电议
1mg电议
5mg电议

产品介绍
An internal standard for the quantification of paraxanthine
Cas No.117490-41-2
Canonical SMILESO=C1C2=C(N=CN2C([2H])([2H])[2H])NC(N1C([2H])([2H])[2H])=O
分子式C7H2D6N4O2
分子量186.2
溶解度DMF: 10 mg/ml,DMSO: 10 mg/ml,Ethanol: 1 mg/ml,PBS (pH 7.2): 1 mg/ml
储存条件Store at -20°C
General tipsFor obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.
Shipping ConditionEvaluation sample solution : ship with blue ice
All other available size: ship with RT , or blue ice upon request
产品描述

Paraxanthine-d6is intended for use as an internal standard for the quantification of paraxanthine by GC- or LC-MS. Paraxanthine is an active metabolite of caffeine .1It is formedviaN3-demethylation of caffeine by the cytochrome P450 (CYP) isoform CYP1A2. Paraxanthine is an adenosine A1and A2receptor antagonist (Kis = 35 and 22 µM, respectively).2In vivo, paraxanthine (30 mg/kg) increases striatal cGMP and extracellular striatal dopamine levels and locomotor activity, as well as inhibits motor depression induced by the adenosine A1agonist CPA or the adenosine A2receptor agonist CGS 21680 in rats not habituated to caffeine.3It also promotes wakefulness and increases locomotor activity and core temperature in narcoleptic transgenic mice without increasing behavioral anxiety.4

1.Tassaneeyakul, W., Birkett, D.J., McManus, M.E., et al.Caffeine metabolism by human hepatic cytochromes P450: contributions of 1A2, 2E1 and 3A isoformsBiochem. Pharmacol.47(10)1767-1776(1994) 2.Chou, C.-C., and Vickroy, T.W.Antagonism of adenosine receptors by caffeine and caffeine metabolites in equine forebrain tissuesAm. J. Vet. Res.64(2)216-224(2003) 3.OrrÚ, M., Guitart, X., Karcz-Kubicha, M., et al.Psychostimulant pharmacological profile of paraxanthine, the main metabolite of caffeine in humansNeuropharmacology67476-484(2013) 4.Okuro, M., Fujiki, N., Kotorii, N., et al.Effects of paraxanthine and caffeine on sleep, locomotor activity, and body temperature in orexin/ataxin-3 transgenic narcoleptic miceSleep33(7)930-942(2010)