XX0020

o-Xylene

Reagent

• Synonym(s): 1,2-Dimethylbenzene
• Linear Formula: C₆H₄(CH₃)₂
• CAS Number: 95-47-6
• Molecular Weight: 106.17
• Beilstein/REAXYS Number: 1815558
• MDL number: MFCD00008519
• UNSPSC Code: 12352005
• EC Index Number: 202-422-2

Properties

• vapor density: 3.7 (vs air)
• Quality Level: 200
• vapor pressure: <0.1 atm ( 21.1 °C); 16 mmHg ( 37.7 °C); 7 mmHg ( 20 °C)
• assay: ≥98% (GC)
• form: liquid
• autoignition temp.: 867 °F
• expl. lim.: 7 %
• color: APHA: ≤10
• refractive index: n20/D 1.505 (lit.)
• bp: 143-145 °C (lit.)
• mp: -26--23 °C (lit.)
• transition temp: flash point 30 °C
• solubility: 0.18 g/L
• density: 0.879 g/mL at 20 °C (lit.); 0.88 g/cm³ at 20 °C
• shipped in: ambient
• storage temp.: room temp
• 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

Application

• Environmental sampling of volatile organic compounds during the 2018 Camp Fire in Northern California.: This study analyzed volatile organic compounds, including o-Xylene, sampled during the 2018 Camp Fire in Northern California, highlighting the analytical methods used to assess environmental exposure and chemical composition in wildfire scenarios (Simms et al., 2021).


• Urinary BTEX, MTBE and naphthalene as biomarkers to gain environmental exposure profiles of the general population.: Focuses on the use of urinary biomarkers, such as BTEX (including o-Xylene), for assessing environmental exposure in populations, demonstrating the integration of analytical chemistry techniques in epidemiological studies (Fustinoni et al., 2010).


• Genotoxic effects of volatile organic compounds in a chemical factory as evaluated by the Tradescantia micronucleus assay and by chemical analysis.: Investigates the genotoxic effects of VOCs, including o-Xylene, in a chemical plant environment, using both biological assays and chemical analysis to evaluate risk and exposure (Kim et al., 2003).


• Time-gated pulsed glow discharge: real-time chemical speciation at the elemental, structural, and molecular level for gas chromatography time-of-flight mass spectrometry.: This paper presents a novel analytical technique for real-time chemical speciation, useful in analyzing compounds like o-Xylene, providing insights into complex analytical methodologies in chemistry (Lewis et al., 2003).

Analysis Note

Assay (GC): 98.0% min
Color (APHA): 10 max
Form: Clear liquid
Infrared Spectrum: Conforms to standard

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