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IMPC-051-03

Supelco

Paraxanthine solution

1.0 mg/mL in methanol, ampule of 1 mL, certified reference material, Cerilliant®

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About This Item

Empirical Formula (Hill Notation):
C7H8N4O2
CAS Number:
611-59-6
Molecular Weight:
180.16
EC Number:
200-659-6
UNSPSC Code:
41116107
NACRES:
NA.24

grade

certified reference material

Quality Level

300

form

liquid

feature

Snap-N-Spike®/Snap-N-Shoot®

packaging

ampule of 1 mL

manufacturer/tradename

Cerilliant®

concentration

1.0 mg/mL in methanol

technique(s)

gas chromatography (GC): suitable
liquid chromatography (LC): suitable

application(s)

pharmaceutical (small molecule)

format

single component solution

storage temp.

room temp

SMILES string

CN1C(=O)Nc2ncn(C)c2C1=O

InChI

1S/C7H8N4O2/c1-10-3-8-5-4(10)6(12)11(2)7(13)9-5/h3H,1-2H3,(H,9,13)

InChI key

QUNWUDVFRNGTCO-UHFFFAOYSA-N

Related Categories

General description

Paraxanthine is a major plasma and urinary metabolite of caffeine. This xanthine derivative is, along with caffeine, a central nervous system stimulant. This Snap-N-Spike® reference solution is applicable for caffeine quantitation in clinical toxicology or urine drug testing by LC-MS/MS or GC/MS.

Legal Information

CERILLIANT is a registered trademark of Merck KGaA, Darmstadt, Germany
Snap-N-Shoot is a registered trademark of Cerilliant Corporation
Snap-N-Spike is a registered trademark of Merck KGaA, Darmstadt, Germany

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1

Storage Class

3 - Flammable liquids

wgk_germany

WGK 2

flash_point_f

49.5 °F - closed cup

flash_point_c

9.7 °C - closed cup

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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S Katherine Laughon et al.
American journal of perinatology, 28(7), 571-578 (2011-03-08)
Outside pregnancy, acute caffeine consumption is associated with insulin resistance. We investigated if during pregnancy plasma concentrations of caffeine and its metabolite, paraxanthine, were associated with insulin resistance. Caffeine, paraxanthine, glucose, and insulin were measured and insulin resistance estimated by
Mark R Youngberg et al.
Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 7(2), 196-203 (2011-04-22)
To explore the relationship between plasma concentrations of caffeine and subjective and polysomnographic measures of sleep in both good sleeper controls (GSC) and individuals with primary insomnia (PI), following the consumption of low-moderate quantities of caffeine in the home environment.
Masashi Okuro et al.
Sleep, 33(7), 930-942 (2010-07-10)
Caffeine, an adenosine A1 and A2a receptor antagonist, is a widely consumed stimulant and also used for the treatment of hypersomnia; however, the wake-promoting potency of caffeine is often not strong enough, and high doses may induce side effects. Caffeine
Vidya Perera et al.
The Journal of pharmacy and pharmacology, 63(9), 1161-1168 (2011-08-11)
To investigate the utility of metrics of CYP1A2 activity using caffeine as a probe, and saliva and plasma sampling with or without a 24-h caffeine abstinence. This was a cross-over pharmacokinetic study in 30 healthy male subjects who received a
Rebeca Pinhancos et al.
Journal of mass spectrometry : JMS, 46(11), 1175-1181 (2011-11-30)
The presence of pharmaceuticals in drinking water is an emerging environmental concern. In most environmental testing laboratories, LC-MS/MS assays based on selected reaction monitoring are used as part of a battery of tests used to assure water quality. Although LC-MS/MS
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Articles

HPLC Analysis of Xanthines on Purospher® STAR RP-18 endcapped

Xanthine is a purine base found in most human body tissues and fluids as well as in other organisms. Methylated xanthines (methylxanthines), which include caffeine, paraxanthine, theobromine, and theophylline, commonly used for their effects as mild stiµlants and as bronchodilators, notably in the treatment of asthma symptoms. This application shows the efficient separation of several common xanthines and may be applied their analysis in any number of desired matrices.

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