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p-Cymene with CAS 99-87-6

what is of  p-Cymene with CAS 99-87-6?

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.

1.Quick details of p-Cymene with CAS 99-87-6

CAS No.:99-87-6
Other Names:4-Isopropyltoluene
EINECS No.:202-796-7
FEMA No.:2356
Place of Origin:Jiangxi, China
Type:Natural Flavour & Fragrances
Usage:Daily Flavor, Food Flavor, Tobacco Flavor, Industrial Flavor
Natural Variety:Plant Extract
Model Number:xs1
Function:Perfume, soap, cosmetics and other daily chemical products
Item Name:Para cymene
Specific gravity:0.8520~0.8610
Melting point:-68 °C
Appreance:Colorless to pale yellow liquid
Refractive index:1.4880~1.4920
Boiling point:176-178 °C

2.Description of p-Cymene with CAS 99-87-6

Melting point -68 °C
Boiling point 176-178 °C(lit.)
density 0.86 g/mL at 25 °C(lit.)
vapor density 4.62 (vs air)
vapor pressure 1.5 mm Hg ( 20 °C)
refractive index n20/D 1.490(lit.)
Fp 117 °F
storage temp. 2-8°C
form Liquid
color Clear


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.