PHR1314
对二甲苯
Pharmaceutical Secondary Standard; Certified Reference Material
别名:
1,4-二甲苯
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 US and EP primary standards, where they are available.
其他说明
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.
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.
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.
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
此项目有
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
Martin Kuss-Petermann et al.
Journal of the American Chemical Society, 134(30), 12844-12854 (2012-07-20)
A homologous series of four molecules in which a phenol unit is linked covalently to a rhenium(I) tricarbonyl diimine photooxidant via a variable number of p-xylene spacers (n = 0-3) was synthesized and investigated. The species with a single p-xylene
Thomas W Lyons et al.
Journal of the American Chemical Society, 134(38), 15708-15711 (2012-09-01)
As oil supplies dwindle, there is a growing need to develop new routes to chemical intermediates that utilize alternative feedstocks. We report here a synthesis of para-xylene, one of the highest volume chemicals derived from petroleum, using only ethylene as
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