Merck
CN
All Photos(2)

Documents

Safety Information

214736

Sigma-Aldrich

Xylenes

reagent grade

Sign Into View Organizational & Contract Pricing
All Photos(2)
Synonym(s):
Xylene mixture of isomers
Linear Formula:
C6H4(CH3)2
CAS Number:
1330-20-7
Molecular Weight:
106.17
EC Number:
215-535-7
MDL number:
MFCD00077264
PubChem Substance ID:
329752157

grade

reagent grade

Quality Level

100

vapor density

3.7 (vs air)

vapor pressure

18 mmHg ( 37.7 °C)

Assay

≥75.0% (xylenes isomers)

form

liquid

autoignition temp.

867 °F

expl. lim.

7 %

impurities

≤25% ethylbenzene

refractive index

n20/D 1.497 (lit.)

bp

137-140 °C (lit.)

mp

-34 °C (lit.)

density

0.86 g/mL at 25 °C (lit.)

SMILES string

Cc1ccc(C)cc1.Cc2cccc(C)c2.Cc3ccccc3C

InChI

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

InChI key

MVZVDAGWAAZJPE-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Xylenes is the mixture of isomeric ortho-, meta- and para-forms of xylene. Its dispersed emission and time of flight mass spectra has been reported. Transitions from S1 ↔ S0 states have been found to be within the range of 100cm-1 and were reported to be arising due to the internal rotation of ring methyl groups. Time-resolvedin situ FTIR spectroscopic and gas chromatographic studies have been carried out to study its diffusion coefficients, adsorption rates and isomerization efficacy over HSZM-5 surfaces.

Application

Xylenes may be employed in chloramphenicol acetyltransferase (CAT) assay to evaluate the CAT gene expression.

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 RE 2 Inhalation - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

77.0 °F - closed cup

Flash Point(C)

25 °C - closed cup

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’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

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').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Transport and isomerization of xylenes over HZSM-5 zeolites.
Mirth G, et al.
J. Catal., 139(1), 24-33 (1993)
A study of nonrigid aromatic molecules by supersonic molecular jet spectroscopy. I. Toluene and the xylenes.
Breen PJ, et al.
J. Chem. Phys. , 87(4), 1917-1926 (1987)
K J Li et al.
Proceedings of the National Academy of Sciences of the United States of America, 95(7), 3650-3654 (1998-05-09)
Efficient and controllable expression of a transgene usually requires the presence of intron sequences and much efforts have been made to produce retrovirus vectors that can transduce and integrate genes with introns. However, this has proven difficult because the viral
Anne-France le Rolle et al.
Journal of translational medicine, 13, 199-199 (2015-06-25)
Clinical therapy for metastatic colorectal cancer (CRC) remains limited, especially when the tumor harbors a KRAS mutation. This study aimed to identify prognostic biomarkers in CRC that are accessible for therapeutic inhibition. Conditioned media from human CRC epithelial cells and
Chani M Becker et al.
Neuro-oncology, 17(9), 1210-1219 (2015-05-15)
Targeting drug delivery to invasive glioma cells is a particularly difficult challenge because these cells lie behind an intact blood-brain barrier (BBB) that can be observed using multimodality imaging. BBB-associated efflux transporters such as P-glycoprotein (P-gp) and breast cancer resistance
View All Related Papers

Chromatograms

application for HPLC

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service