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C121452

Sigma-Aldrich

p-Cymene

99%

Synonym(s):

1-Isopropyl-4-methylbenzene, 4-Isopropyltoluene

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About This Item

Linear Formula:
CH3C6H4CH(CH3)2
CAS Number:
99-87-6
Molecular Weight:
134.22
Beilstein:
1903377
EC Number:
202-796-7
MDL number:
MFCD00008893
UNSPSC Code:
12352100
PubChem Substance ID:
24892383
NACRES:
NA.22

vapor density

4.62 (vs air)

vapor pressure

1.5 mmHg ( 20 °C)
3.7 mmHg ( 37.7 °C)

Assay

99%

form

liquid

autoignition temp.

817 °F

expl. lim.

5.6 %

refractive index

n20/D 1.490 (lit.)

bp

176-178 °C (lit.)

density

0.86 g/mL at 25 °C (lit.)

SMILES string

CC(C)c1ccc(C)cc1

InChI

1S/C10H14/c1-8(2)10-6-4-9(3)5-7-10/h4-8H,1-3H3

InChI key

HFPZCAJZSCWRBC-UHFFFAOYSA-N

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Application

p-Cymene is an alkyl aromatic hydrocarbon mainly used to study oxidation reactions under various conditions to synthesize highly valuable intermediates and building-blocks such as cymene hydroperoxide, 4-methyl acetophenone, 4-isopropyl benzyl alcohol, 4-isopropyl benzaldehyde and 4-isopropyl benzoic acid etc.

Signal Word

Danger

Hazard Statements

H226,H304,H331,H361f,H411

Hazard Classifications

Acute Tox. 3 Inhalation - Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 3 - Repr. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

125.6 °F - closed cup

Flash Point(C)

52 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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Electron-transfer processes: oxidation of naphthalene and p-cymene by peroxydisulfate
Giordano, Claudio and Belli, Aldo and Citterio, Attilio and Minisci, Francesco
The Journal of Organic Chemistry, 44(13), 2314-2315 (1979)
Loris Pinto et al.
Molecules (Basel, Switzerland), 25(20) (2020-10-22)
The aim of this work was to evaluate the antifungal activity in vapor phase of thymol, p-cymene, and γ-terpinene, the red thyme essential oil compounds (RTOCs). The Minimum Inhibitory Concentration (MIC) of RTOCs was determined against postharvest spoilage fungi of
Betelehem Wondwosen et al.
Malaria journal, 16(1), 39-39 (2017-01-25)
Maize cultivation contributes to the prevalence of malaria mosquitoes and exacerbates malaria transmission in sub-Saharan Africa. The pollen from maize serves as an important larval food source for Anopheles mosquitoes, and females that are able to detect breeding sites where
Liquid-phase oxidation of p-cymene: Nature of intermediate hydroperoxides and relative activity of the alkyl groups
Serif, George Samuel and Hunt, CF and Bourns, AN
Canadian Journal of Chemistry, 31(12), 1229-1238 (1953)
Nanosized ruthenium particles decorated carbon nanofibers as active catalysts for the oxidation of p-cymene by molecular oxygen
Makgwane, Peter R and Ray, Suprakas Sinha
J. Mol. Catal. A: Chem., 373, 1-11 (2013)
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