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Merck
CN

95660

o-Xylene

analytical standard

Synonym(s):

1,2-Dimethylbenzene

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About This Item

Linear Formula:
C6H4(CH3)2
CAS Number:
95-47-6
Molecular Weight:
106.17
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
329770473
EC Number:
202-422-2
Beilstein/REAXYS Number:
1815558
MDL number:
MFCD00008519

Key Documents

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Product Name

o-Xylene, analytical standard

InChI key

CTQNGGLPUBDAKN-UHFFFAOYSA-N

InChI

1S/C8H10/c1-7-5-3-4-6-8(7)2/h3-6H,1-2H3

SMILES string

Cc1ccccc1C

grade

analytical standard

vapor density

3.7 (vs air)

vapor pressure

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

assay

≥99.0% (GC)

autoignition temp.

867 °F

shelf life

limited shelf life, expiry date on the label

expl. lim.

7 %

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

refractive index

n20/D 1.505 (lit.)
n20/D 1.505

bp

143-145 °C (lit.)

mp

-26--23 °C (lit.)

density

0.879 g/mL at 20 °C (lit.)

application(s)

environmental

format

neat

Quality Level

100

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Application

o-Xylene may be used as a model contaminant for investigating the safe use of products based on recycled fibers in contact with foodstuffs via measuring its uptake by the fiber material and evaluating its migration behavior onto tenax.
o-Xylene may be used as an analytical reference standard for the quantification of the analyte in occupational environmental samples and aqueous samples using gas chromatography technique with different modes of detection.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

General description

o-Xylene is an environmental pollutant belonging to the class of volatile organic compounds. It is emitted from a variety of sources including adhesives, degreasing agents, combustion products of wood and fuels, industrial paints, aerosols, etc.

Other Notes

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.

wgk

WGK 2

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

flash_point_f

89.6 °F - closed cup

flash_point_c

32.0 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
BCCN8365
BCCN7298
BCCN2094
BCCM6897
BCCL4296

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Migration studies from recycled paper packaging materials: development of an analytical method for rapid testing
Triantafyllou.IV, et al.
Analytica Chimica Acta, 467, 253?260-253?260 (2002)
Static headspace, solid-phase microextraction and headspace solid-phase microextraction for BTEX determination in aqueous samples by gas chromatography
Menendez FCJ, et al.
Analytica Chimica Acta, 415(1-2), 9-20 (2000)
Fingerprint identification of volatile organic compounds in gasoline contaminated groundwater using gas chromatography differential ion mobility spectrometry
Liang F, et al.
International Journal for Ion Mobility Spectrometry, 15(3), 169-177 (2012)
Comparative evaluation of liquid chromatography versus gas chromatography using a ?-cyclodextrin stationary phase for the determination of BTEX in occupational environments
Campos-Candel A, et al.
Talanta, 78(4-5), 1286-1292 (2009)
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)
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