p-Cymene is a naturally occurring compound, although it has two further geometric isomers, m-cymene (with meta-substituted alkyl groups) and o-cymene (with ortho-substituted alkyl groups) which do not occur naturally. p-Cymene is related to the monoterpenes. Monoterpenes themselves belong to the “terpenes”, a larger class of organic compounds, which are the most representative components of essential oils. chemical structure of p-cymene, indicating the benzene ring with methyl and isopropyl substitutions.
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.
Medicinally, p-cymene is used to prevent coughs and eliminate phlegm as well as being a flavouring agent, and being used in the production of fungicides and pesticides. It is considered to be “generally recognised as safe” (GRAS) by the U.S. Food and Drug Administration. Its potential in the prevention of protein glycation mediated diabetic complications has also been confirmed, and it has been suggested as an in vivo antioxidant compound due to its ability to reduce the formation of oxygen and nitrogen reactive species, acting as a potential neuroprotective agent in the brain. Therefore, it could be involved in the treatment of oxidative stress related diseases.
Sinezimboni eziningi zekhwalithi ephezulu ngokubambisana okujulile, ezingakunikeza ngemikhiqizo yekhwalithi ephezulu namanani ancintisanayo. Futhi singanikeza izaphulelo zokuthenga ngobuningi.Futhi sibambisana nezinkampani eziningi ezichwepheshile zokudlulisa impahla, zingaletha imikhiqizo ngokuphepha nangokushelela ezandleni zakho. Isikhathi sokulethwa cishe yizinsuku ezi-3-20 ngemuva kokuqinisekiswa kwenkokhelo.
Product Name: | p-Cymene |
Synonyms: | 1-(1-methylethyl)-4-methylbenzene;1-isopropyl-4-methyl-benzen;1-methyl-4-(1-methylethyl)-benzen;1-methyl-4-(1-methylethyl)benzene;1-methyl-4-(1-methyl-ethyl)-benzene;1-methyl-4-1-methylethylbenzene;p-Isopropyltoluol;p-Mentha-1,3,5-triene |
CAS: | 99-87-6 |
MF: | C10H14 |
MW: | 134.22 |
EINECS: | 202-796-7 |
Product Categories: | Arenes;Analytical Chemistry; |
Mol File: | 99-87-6.mol |
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p-Cymene Chemical Properties |
Iphoyinti lokuncibilika | -68 °C |
Iphuzu elibilayo | 176-178 °C(lit.) |
ukuminyana | 0.86 g/mL at 25 °C(lit.) |
ukuminyana komhwamuko | 4.62 (vs air) |
umfutho womhwamuko | 1.5 mm Hg ( 20 °C) |
FEMA | 2356 | P-CYMENE |
inkomba ye-refractive | n20/D 1.490(lit.) |
Fp | 117 °F |
izinga lokushisa lokugcina. | 2-8°C |
ukuncibilika | Chloroform (Sparingly), Ethyl Acetate (Slightly) |
ifomu | Uketshezi |
umbala | Kucace |
Iphunga | Mild, pleasant; aromatic, solvent-type. |
Odor Threshold | 0.057ppm |
umkhawulo wokuqhuma | 5.6% |
Odor Type | terpenic |
Ukuncibilika kwamanzi | PRACTICALLY INSOLUBLE |
Merck | 14,2763 |
JECFA Number | 1325 |
I-BRN | 1903377 |
Dielectric constant | 2.3(17℃) |
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