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Merck
CN

PHR1314

Supelco

对二甲苯

Pharmaceutical Secondary Standard; Certified Reference Material

别名:

1,4-二甲苯

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About This Item

线性分子式:
C6H4(CH3)2
CAS号:
分子量:
106.17
Beilstein:
1901563
EC 号:
MDL编号:
UNSPSC代码:
41116107
PubChem化学物质编号:
NACRES:
NA.24

等级

certified reference material
pharmaceutical secondary standard

质量水平

Agency

traceable to NIST 3005
traceable to USP 1601849

蒸汽密度

3.7 (vs air)

蒸汽压

9 mmHg ( 20 °C)

CofA

current certificate can be downloaded

自燃温度

984 °F

expl. lim.

7 %

技术

HPLC: suitable
gas chromatography (GC): suitable

折射率

n20/D 1.495 (lit.)

沸点

138 °C (lit.)

mp

12-13 °C (lit.)

密度

0.861 g/mL at 20 °C (lit.)

应用

pharmaceutical (small molecule)

包装形式

neat

储存温度

2-30°C

SMILES字符串

Cc1ccc(C)cc1

InChI

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

InChI key

URLKBWYHVLBVBO-UHFFFAOYSA-N

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一般描述

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.

应用

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.

分析说明

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

其他说明

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.

附注

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.

推荐产品

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.

警示用语:

Danger

危险分类

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

靶器官

Respiratory system

储存分类代码

3 - Flammable liquids

WGK

WGK 2

闪点(°F)

80.6 °F - closed cup

闪点(°C)

27 °C - closed cup

法规信息

危险化学品

从最新的版本中选择一种:

分析证书(COA)

Lot/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
Yu-Ting Cheng et al.
Angewandte Chemie (International ed. in English), 51(44), 11097-11100 (2012-10-06)
Pores for thought: Chemical liquid deposition of silica onto ZSM-5 catalysts led to smaller pore openings that resulted in >90% selectivity for p-xylene over the other xylenes in the catalytic fast pyrolysis of furan and 2-methylfuran (see scheme). The p-xylene

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