PHR1312

o-Xylene

Pharmaceutical Secondary Standard; Certified Reference Material

• Synonym(s): 1,2-Dimethylbenzene
• Linear Formula: C₆H₄(CH₃)₂
• CAS Number: 95-47-6
• Molecular Weight: 106.17
• Beilstein/REAXYS Number: 1815558
• EC Number: 202-422-2
• MDL number: MFCD00008519
• UNSPSC Code: 41116107
• PubChem Substance ID: 329823298
• NACRES: NA.24

Properties

• grade: certified reference material; pharmaceutical secondary standard
• Quality Level: 300
• agency: traceable to NIST 3003; traceable to USP 1601849
• vapor density: 3.7 (vs air)
• vapor pressure: <0.1 atm ( 21.1 °C); 16 mmHg ( 37.7 °C); 7 mmHg ( 20 °C)
• CofA: current certificate can be downloaded
• autoignition temp.: 867 °F
• expl. lim.: 7 %
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• refractive index: n20/D 1.505 (lit.)
• bp: 143-145 °C (lit.)
• mp: -26--23 °C (lit.)
• density: 0.879 g/mL at 20 °C (lit.)
• application(s): pharmaceutical (small molecule)
• format: neat
• storage temp.: 2-30°C
• SMILES string: Cc1ccccc1C
• InChI: 1S/C8H10/c1-7-5-3-4-6-8(7)2/h3-6H,1-2H3
• InChI key: CTQNGGLPUBDAKN-UHFFFAOYSA-N

Description

General description

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.

Application

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.

Analysis Note

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

Other Notes

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.

Footnote

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.

Recommended products

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.

Safety Information

• pictograms: GHS02,GHS08,GHS07
• signalword: Danger
• hcodes: H226,H304,H312 + H332,H315,H319,H335,H412
• pcodes: P210 - P273 - P280 - P301 + P310 - P303 + P361 + P353 - P331
• Hazard Classifications: 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
• target_organs: Respiratory system
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 2
• flash_point_f: 89.6 °F - closed cup
• flash_point_c: 32.0 °C - closed cup