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Pharmaceutical Secondary Standard; Certified Reference Material

Fórmula linear:
Número CAS:
Peso molecular:
Número EC:
Número MDL:
ID de substância PubChem:

Nível de qualidade



certified reference material
pharmaceutical secondary standard


traceable to NIST 3003
traceable to USP 1601849

densidade de vapor

3.7 (vs air)

pressão de vapor

<0.1 atm ( 21.1 °C)
16 mmHg ( 37.7 °C)
7 mmHg ( 20 °C)

Certificado de análise (CofA)

current certificate can be downloaded

temperatura de autoignição

867 °F

Lim. expl.

7 %


HPLC: suitable
gas chromatography (GC): suitable

índice de refração

n20/D 1.505 (lit.)


143-145 °C (lit.)


-26--23 °C (lit.)


0.879 g/mL at 20 °C (lit.)


pharmaceutical (small molecule)



temperatura de armazenamento


SMILES string




InChI key


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Descrição geral

o-Xylene is a nonoxygenated, homocyclic aromatic compound that occurs as a constituent of petroleum. It belongs to the class of volatile organic compounds (VOCs) having vapor pressure high enough to vaporize under normal conditions and enter into the atmosphere. It is found to be relatively water-soluble and suspected to have carcinogenic properties.
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.


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.

Nota de análise

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

Outras notas

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.

Nota de rodapé

To see an example of a Certificate of Analysis for this material enter LRAB8972 in the slot below. This is an example certificate only and may not be the lot that you receive.

Palavra indicadora


Classificações de perigo

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


Respiratory system

Código de classe de armazenamento

3 - Flammable liquids



Ponto de fulgor (ºF)

89.6 °F - closed cup

Ponto de fulgor (ºC)

32.0 °C - closed cup

Certificado de análise

Insira o número de lote para pesquisar o Certificado de análise (COA).

Certificado de origem

Insira o número de lote para pesquisar o Certificado de origem (COO).

Anaerobic degradation of toluene and o-xylene by a methanogenic consortium.
Edwards EA and Grbic-Galic D
Applied and Environmental Microbiology, 60(1), 313-322 (1994)
Separation and determination of benzene, toluene, ethylbenzene and o-xylene compounds in water using directly suspended droplet microextraction coupled with gas chromatography-flame ionization detector.
Sarafraz-Yazdi, et al.
Talanta, 78(3), 936-941 (2009)
Olivier Alluin et al.
PloS one, 9(10), e111072-e111072 (2014-10-29)
While several cellular and pharmacological treatments have been evaluated following spinal cord injury (SCI) in animal models, it is increasingly recognized that approaches to address the glial scar, including the use of chondroitinase ABC (ChABC), can facilitate neuroanatomical plasticity. Moreover
Maia Chanrion et al.
Nature communications, 5, 5005-5005 (2014-10-09)
Epithelial-to-mesenchymal transition-like (EMT-like) is a critical process allowing initiation of metastases during tumour progression. Here, to investigate its role in intestinal cancer, we combine computational network-based and experimental approaches to create a mouse model with high metastatic potential. Construction and
Casper Bindzus Foldager et al.
Cartilage, 5(2), 123-132 (2014-04-01)
The objective of the present study was to investigate the presence and distribution of 2 basement membrane (BM) molecules, laminin and collagen type IV, in healthy and degenerative cartilage tissues. Normal and degenerated tissues were obtained from goats and humans


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