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294780

Sigma-Aldrich

o-Xylene

anhydrous, 97%

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
Beilstein:
1815558
EC Number:
202-422-2
MDL number:
MFCD00008519
UNSPSC Code:
12352002
PubChem Substance ID:
57648373
NACRES:
NA.21
grade:
anhydrous
Assay:
97%
bp:
143-145 °C (lit.)
vapor pressure:
<0.1 atm ( 21.1 °C)
16 mmHg ( 37.7 °C)
7 mmHg ( 20 °C)
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grade

anhydrous

Quality Level

100

vapor density

3.7 (vs air)

vapor pressure

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

Assay

97%

form

liquid

autoignition temp.

867 °F

expl. lim.

7 %

impurities

<0.003% water
<0.005% water (100 mL pkg)

evapn. residue

<0.0003%

refractive index

n20/D 1.505 (lit.)

bp

143-145 °C (lit.)

mp

-26--23 °C (lit.)

solubility

water: partially soluble 0.1705 g/L at 25 °C

density

0.879 g/mL at 20 °C (lit.)

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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Application

o-Xylene may be used as a solvent for the synthesis of N,N-dimethyl-5β-cholest-3-ene-5-acetamide from cholest-4-en-3β-ol.[1] It may also be used as a starting material in the preparation of o-xylyl bromide[2], 4-bromo-o-xylene{45 and o-toluic acid.[3]

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Description
Pricing

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

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Certificates of Analysis (COA)

Lot/Batch Number
SHBS2456
SHBR3661
SHBQ9312
STBK6625
SHBP8656

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o-Tolualdehyde
Hass HB and Bender ML
Organic Syntheses, 30, 99-99 (1950)
o-Toluic acid
Zaugg HE and Rapala RT
Organic Syntheses, 27, 84-84 (1947)
N,N-dimethyl-5?-cholest-3-ene-5-acetamide
Ireland RE and Dawson DJ
Organic Syntheses, 54, 77-77 (1974)
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Eagleson M.
Concise Encyclopedia Chemistry, 833-833 (1994)
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Questions

1–2 of 2 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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