134449
p-Xylene
ReagentPlus®, 99%
Synonym(s):
1,4-Dimethylbenzene
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About This Item
Linear Formula:
C6H4(CH3)2
CAS Number:
Molecular Weight:
106.17
UNSPSC Code:
12352005
NACRES:
NA.21
PubChem Substance ID:
EC Number:
203-396-5
Beilstein/REAXYS Number:
1901563
MDL number:
Assay:
99%
Technique(s):
GC/MS: suitable
Bp:
138 °C (lit.)
Vapor pressure:
9 mmHg ( 20 °C)
vapor density
3.7 (vs air)
Quality Level
vapor pressure
9 mmHg ( 20 °C)
product line
ReagentPlus®
assay
99%
form
liquid
autoignition temp.
984 °F
expl. lim.
7 %
technique(s)
GC/MS: suitable
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.)
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
General description
p-Xylene is an isomeric form of xylene. It undergoes Friedel-Crafts acylation reaction with various acids in the presence of zeolites (catalyst). It can be obtained from the mixtures of isomeric forms of xylene and ethylbenzene isolated from the naptha fraction of petroleum. Also, it can be prepared from toluene by employing ZSM (Zeolite Socony Mobil)-5 catalysts. It is a raw material for the manufacture of PET (poly(ethylene terephthalate)) bottles. Its sustainable synthesis from ethylene and dimethylfuran in the presence of zeolite catalysts has been reported.
Application
p-Xylene may be used in the synthesis of poly-p-xylene and terephthalic acid.
p-xylene mayumb be used in the single drop microextraction of the corresponding organochlorine pesticides in vegetables, separated via gas chromatography(GC)coupled with mass spectrometry(MS).
p-xylene mayumb be used in the single drop microextraction of the corresponding organochlorine pesticides in vegetables, separated via gas chromatography(GC)coupled with mass spectrometry(MS).
Legal Information
ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
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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
WGK 2
flash_point_f
80.6 °F - closed cup
flash_point_c
27 °C - closed cup
Regulatory Information
危险化学品
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Mixed liquids for single-drop microextraction of organochlorine pesticides in vegetables
Zhang M, et al.
Talanta, 74(4), 599-604 (2008)
Ultra-selective cycloaddition of dimethylfuran for renewable p-xylene with H-BEA.
Chang CC, et al.
Green Chemistry, 16(2), 585-588 (2014)
Cycloaddition of biomass-derived furans for catalytic production of renewable p-xylene.
Williams CL, et al.
ACS Catalysis, 2(6), 935-939 (2012)
Global Trade Item Number
| SKU | GTIN |
|---|---|
| T2751-5G | 04061837343100 |
| 75935-50MG | 04061832916934 |
| T2751-100MG | 04061832393377 |
| T2751-10MG | 04061832393384 |
| T2751-1G | 04061837343087 |
| T2751-250MG | 04061837343094 |
| PHR3245-500MG | 04065267005478 |
| 1642904-200MG | 04061833855423 |
| 134449-20L | 04061837713194 |
| 134449-18L-CS | 04061837713187 |
| 134449-1L | 04061838730060 |
| 134449-4L | 04061838730077 |