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C121452

Sigma-Aldrich

p-Cymene

99%

Sinónimos:

1-Isopropyl-4-methylbenzene, 4-Isopropyltoluene

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About This Item

Fórmula lineal:
CH3C6H4CH(CH3)2
Número de CAS:
99-87-6
Peso molecular:
134.22
Beilstein:
1903377
Número CE:
202-796-7
Número MDL:
MFCD00008893
Código UNSPSC:
12352100
ID de la sustancia en PubChem:
24892383
NACRES:
NA.22
En este momento no podemos mostrarle ni los precios ni la disponibilidad

densidad de vapor

4.62 (vs air)

Nivel de calidad

100

presión de vapor

1.5 mmHg ( 20 °C)
3.7 mmHg ( 37.7 °C)

Ensayo

99%

Formulario

liquid

temp. de autoignición

817 °F

lim. expl.

5.6 %

índice de refracción

n20/D 1.490 (lit.)

bp

176-178 °C (lit.)

densidad

0.86 g/mL at 25 °C (lit.)

cadena SMILES

CC(C)c1ccc(C)cc1

InChI

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

Clave InChI

HFPZCAJZSCWRBC-UHFFFAOYSA-N

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Aplicación

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.[1][2][3]

Palabra de señalización

Danger

Frases de peligro

H226,H304,H331,H361f,H411

Clasificaciones de peligro

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

Código de clase de almacenamiento

3 - Flammable liquids

Clase de riesgo para el agua (WGK)

WGK 2

Punto de inflamabilidad (°F)

125.6 °F - closed cup

Punto de inflamabilidad (°C)

52 °C - closed cup

Equipo de protección personal

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificados de análisis (COA)

Lot/Batch Number
MKCX2202
MKCT1939
MKCQ7471
MKCS1827
MKCR6143

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Sigma-Aldrich

223190

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m-Cymene analytical standard

Supelco

30037

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α-Terpinene 85%

Sigma-Aldrich

223182

α-Terpinene

γ-Terpinene ≥95.0% (GC)

Sigma-Aldrich

86478

γ-Terpinene

Carvacrol 98%

Sigma-Aldrich

282197

Carvacrol

α-Terpinene ≥95.0% (GC)

Sigma-Aldrich

86473

α-Terpinene

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)
Carina Dettenrieder et al.
Sensors (Basel, Switzerland), 19(17) (2019-08-24)
A portable sensor system for the simultaneous detection of multiple environmentally relevant volatile organic compounds (VOCs) in real seawater based on Fourier transform infrared fiber-optic evanescent wave spectroscopy (FT-IR-FEWS) was developed. A cylindrical silver halide (AgX) fiber with an ethylene/propylene
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Questions

1–3 of 3 Questions  

  1. 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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  2. 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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  3. WHAT IS THE CONCENTRATION IN THE BOTTLE p-Cymene (C121452-1L)

    1 answer

    1. The concentration of this product can be determined by using the lot specific purity reported in the Certificate of Analysis, the density, and the compound molecular weight. This product has a density of 0.86 g/mL and a molecular weight of 134.22 g/mol. The minimum purity is 98.5%, thus the molarity will vary slightly from lot to lot. The molarity can range from 6.31M at the minimum purity of 98.5% to 6.41M at the maximum purity of 100%.

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