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Merck

PHR1314

Supelco

p-Xylen

Pharmaceutical Secondary Standard; Certified Reference Material

Synonym(e):

1,4-Dimethylbenzol

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About This Item

Lineare Formel:
C6H4(CH3)2
CAS-Nummer:
Molekulargewicht:
106.17
Beilstein:
1901563
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
41116107
PubChem Substanz-ID:
NACRES:
NA.24

Qualität

certified reference material
pharmaceutical secondary standard

Qualitätsniveau

Agentur

traceable to NIST 3005
traceable to USP 1601849

Dampfdichte

3.7 (vs air)

Dampfdruck

9 mmHg ( 20 °C)

Analysenzertifikat (CofA)

current certificate can be downloaded

Selbstzündungstemp.

984 °F

Expl.-Gr.

7 %

Methode(n)

HPLC: suitable
gas chromatography (GC): suitable

Brechungsindex

n20/D 1.495 (lit.)

bp

138 °C (lit.)

mp (Schmelzpunkt)

12-13 °C (lit.)

Dichte

0.861 g/mL at 20 °C (lit.)

Anwendung(en)

pharmaceutical (small molecule)

Format

neat

Lagertemp.

2-30°C

SMILES String

Cc1ccc(C)cc1

InChI

1S/C8H10/c1-7-3-5-8(2)6-4-7/h3-6H,1-2H3

InChIKey

URLKBWYHVLBVBO-UHFFFAOYSA-N

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Allgemeine Beschreibung

Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

Anwendung

p-Xylene may be used as a pharmaceutical reference standard for the determination of the analyte in pharmaceutical formulations by chromatography techniques.
These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Hinweis zur Analyse

These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available.

Sonstige Hinweise

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Fußnote

To see an example of a Certificate of Analysis for this material enter LRAB8973 in the slot below. This is an example certificate only and may not be the lot that you receive.

Empfohlene Produkte

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Signalwort

Danger

Gefahreneinstufungen

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Zielorgane

Respiratory system

Lagerklassenschlüssel

3 - Flammable liquids

WGK

WGK 2

Flammpunkt (°F)

80.6 °F - closed cup

Flammpunkt (°C)

27 °C - closed cup


Choose from one of the most recent versions:

Analysenzertifikate (COA)

Lot/Batch Number

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If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

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High-speed analysis of residual solvents by flow-modulation gas chromatography
Wittrig RE, et al.
Journal of Chromatography A, 1027(1-2), 75-82 (2004)
Semi-automated peak trapping recycle chromatography instrument for peak purity investigations
Trone MD, et al.
Journal of Chromatography A, 1133(1-2), 104-111 (2006)
Sergio Grunder et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 18(49), 15632-15649 (2012-10-24)
Molecular gauge blocks, based on 1-7, 9-11 paraxylene rings, have been synthesized as part of a homologous series of oligoparaxylenes (OPXs) with a view to providing a molecular tool box for the construction of nano architectures-such as spheres, cages, capsules
G Gallastegui et al.
Bioresource technology, 102(17), 7657-7665 (2011-07-01)
Interactions of toluene and p-xylene in air treatment biofilters packed with an inert filter media were studied. The effect of the inlet load of toluene, p-xylene and mixtures of both compounds on the biodegradation rate was analyzed in three lab-scale
Francesc X Prenafeta-Boldú et al.
FEMS microbiology ecology, 80(3), 722-734 (2012-03-03)
The treatment of air contaminated with toluene, ethylbenzene, and p-xylene was assayed in three laboratory-scale biofilters, each consisting of two modules connected in series, packed with a pelletized organic fertilizer and inoculated with a toluene-degrading liquid enrichment culture. Biofilters were

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