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95660

Supelco

o-Xylene

analytical standard

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Synonym(s):
1,2-Dimethylbenzene
Linear Formula:
C6H4(CH3)2
CAS Number:
Molecular Weight:
106.17
Beilstein:
1815558
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.24

grade

analytical standard

Quality Level

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

SMILES string

Cc1ccccc1C

InChI

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

InChI key

CTQNGGLPUBDAKN-UHFFFAOYSA-N

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1 of 4

This Item
PHR131295662X1040
o-Xylene analytical standard

Supelco

95660

o-Xylene

o-Xylene Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1312

o-Xylene

o-Xylene puriss. p.a., &#8805;99.0% (GC)

Sigma-Aldrich

95662

o-Xylene

o-Xylene reagent grade, &#8805;98.0%

Sigma-Aldrich

X1040

o-Xylene

assay

≥99.0% (GC)

assay

-

assay

≥99.0% (GC)

assay

≥98.0%

shelf life

limited shelf life, expiry date on the label

shelf life

-

shelf life

-

shelf life

-

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

technique(s)

-

technique(s)

-

application(s)

environmental

application(s)

pharmaceutical (small molecule)

application(s)

-

application(s)

-

format

neat

format

neat

format

-

format

-

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.

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.

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.

Signal Word

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 Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

89.6 °F - closed cup

Flash Point(C)

32.0 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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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T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

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Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

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o-Xylene Pharmaceutical Secondary Standard; Certified Reference Material

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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)
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)
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)
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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