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317195

Sigma-Aldrich

p-Xylene

suitable for HPLC, ≥99%

Synonym(s):

1,4-Dimethylbenzene

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About This Item

Linear Formula:
C6H4(CH3)2
CAS Number:
106-42-3
Molecular Weight:
106.17
Beilstein/REAXYS Number:
1901563
EC Number:
203-396-5
MDL number:
MFCD00008556
UNSPSC Code:
12190000
PubChem Substance ID:
329753901
NACRES:
NA.21

vapor density

3.7 (vs air)

vapor pressure

9 mmHg ( 20 °C)

assay

≥99%

form

liquid

autoignition temp.

984 °F

expl. lim.

7 %

technique(s)

HPLC: suitable

impurities

<0.030% water

evapn. residue

<0.0005%

refractive index

n20/D 1.495 (lit.)

bp

138 °C (lit.)

mp

12-13 °C (lit.)

solubility

water: soluble 0.2 g/L

density

0.861 g/mL at 20 °C (lit.)

λ

H2O reference

UV absorption

λ: 294 nm Amax: 1.00
λ: 320 nm Amax: 0.10
λ: 350 nm Amax: 0.05
λ: 380-400 nm Amax: 0.01

application(s)

food and beverages

SMILES string

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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Application


  • Measurements of relative distribution constants of vaporized hydrocarbons between air and polydimethylsiloxane via capillary columns for the calculation of headspace hydrocarbon compositions.: This research demonstrates the use of p-Xylene in gas chromatography to measure the distribution constants of hydrocarbons, crucial for accurate environmental and chemical analysis (Kim & Yu, 2020).

  • Mutagenic atmospheres resulting from the photooxidation of aromatic hydrocarbon and NO(x) mixtures.: This article explores the mutagenic potential of atmospheric p-Xylene under photooxidation conditions, providing insights into air quality and health-related impacts (Riedel et al., 2018).


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signalword

Danger

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

80.6 °F - closed cup

flash_point_c

27 °C - closed cup

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Cycloaddition of biomass-derived furans for catalytic production of renewable p-xylene.
Williams CL, et al.
ACS Catalysis, 2(6), 935-939 (2012)
Friedel-Crafts acylation of toluene and p-xylene with carboxylic acids catalyzed by zeolites.
Chiche B, et al.
The Journal of Organic Chemistry, 51(11), 2128-2130 (1986)
Ultra-selective cycloaddition of dimethylfuran for renewable p-xylene with H-BEA.
Chang CC, et al.
Green Chemistry, 16(2), 585-588 (2014)
Metal-organic framework MIL-101 for high-resolution gas-chromatographic separation of xylene isomers and ethylbenzene.
Zhi-Yuan Gu et al.
Angewandte Chemie (International ed. in English), 49(8), 1477-1480 (2010-01-22)
Francesc X Prenafeta-Boldú et al.
FEMS microbiology ecology, 80(3), 722-734 (2012-03-03)
The treatment of air contaminated with toluene, ethylbenzene, and p-xylene was assayed in three laboratory-scale biofilters, each consisting of two modules connected in series, packed with a pelletized organic fertilizer and inoculated with a toluene-degrading liquid enrichment culture. Biofilters were
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