Skip to Content
Merck
All Photos(2)

Key Documents

View All Documentation

Safety Information

C121452

Sigma-Aldrich

p-Cymene

99%

Synonym(s):

1-Isopropyl-4-methylbenzene, 4-Isopropyltoluene

Sign Into View Organizational & Contract Pricing
All Photos(2)

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)

Quality Level

100

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

Looking for similar products? Visit Product Comparison Guide

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 2 petroleums
Hazardous rank III
Water insoluble liquid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

C121452-4L:
C121452-VAR:
C121452-18L:
C121452-25L:
C121452-25ML:
C121452-BULK:
C121452-5L:
C121452-1L:

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCQ7471
MKCP6638
MKCN1411
MKCJ9905
MKCJ1264

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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)
Lucy Owen et al.
Molecular and cellular probes, 38, 25-30 (2017-12-25)
Many essential oil components are known to possess broad spectrum antimicrobial activity, including against antibiotic resistant bacteria. These compounds may be a useful source of new and novel antimicrobials. However, there is limited research on the structure-activity relationship (SAR) of
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
View All Related Papers

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