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p-Cymene

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Identification
Molecular formula
C10H14
CAS number
99-87-6
IUPAC name
5-isopropyl-2-methyl-cyclohexa-1,3-diene
State
State

At room temperature, p-Cymene is in a liquid state. It is largely insoluble in water but soluble in organic solvents.

Melting point (Celsius)
-68.90
Melting point (Kelvin)
204.25
Boiling point (Celsius)
177.10
Boiling point (Kelvin)
450.25
General information
Molecular weight
134.22g/mol
Molar mass
134.2180g/mol
Density
0.8570g/cm3
Appearence

p-Cymene is a colorless liquid with a mild, pleasant, aromatic odor. It is used as a component of essential oils and can appear as a pale, straw-colored liquid when pure.

Comment on solubility

Solubility of 5-isopropyl-2-methyl-cyclohexa-1,3-diene

5-isopropyl-2-methyl-cyclohexa-1,3-diene presents intriguing characteristics when considering its solubility properties. This compound, exhibiting a complex carbon structure, demonstrates moderate solubility in various organic solvents. Its solubility can be influenced by multiple factors:

  • Polarity: The presence of isopropyl and methyl groups contributes to a relatively nonpolar character, making the compound more soluble in nonpolar solvents such as hexane or toluene.
  • Temperature: Solubility can increase with temperature; often, warmer conditions allow for greater dissolution of organic compounds.
  • Interactions: The size of the substituents and hydrophobic interactions play a crucial role, affecting how well 5-isopropyl-2-methyl-cyclohexa-1,3-diene interacts with solvent molecules.

In practical terms, while 5-isopropyl-2-methyl-cyclohexa-1,3-diene may not be highly soluble in water due to its nonpolar nature, it demonstrates a good affinity for organic solvents. This behavior aligns with the principle of “like dissolves like”, making it essential to select appropriate solvents when working with this compound in laboratories or industrial applications.

Interesting facts

Interesting Facts about 5-Isopropyl-2-methyl-cyclohexa-1,3-diene

5-Isopropyl-2-methyl-cyclohexa-1,3-diene is a fascinating compound that showcases the complexity and beauty of organic chemistry. As a divinyl derivative, it combines a unique structural arrangement with intriguing chemical properties. Here are some captivating facts about this compound:

  • Structurally Unique: The presence of both isopropyl and methyl groups on the cyclohexadiene ring adds to its structural complexity, providing valuable opportunities for further chemical reactions.
  • Reactivity: The diene component in this compound makes it highly reactive in Diels-Alder reactions, a well-known mechanism in synthetic organic chemistry.
  • Synthetic Applications: Due to its reactive nature, 5-isopropyl-2-methyl-cyclohexa-1,3-diene can be used as a precursor in the synthesis of various complex organic molecules, potentially including pharmaceuticals and natural products.
  • Isomerization Potential: This compound can undergo various isomerization reactions, leading to different structural isomers, which makes it interesting for research on reaction pathways and mechanisms.

“The study of compounds like 5-isopropyl-2-methyl-cyclohexa-1,3-diene not only expands our understanding of chemical reactivity but also opens doors to innovative synthetic strategies.”

In conclusion, 5-isopropyl-2-methyl-cyclohexa-1,3-diene is more than just a compound; it is a window into the intricacies of organic chemistry and the potential for creating new materials and drugs through careful manipulation of its structure and reactivity. Its unique characteristics make it a subject of ongoing study and fascination among chemists.

Synonyms
ALPHA-PHELLANDRENE
99-83-2
p-Mentha-1,5-diene
Menthadiene
1,3-Cyclohexadiene, 2-methyl-5-(1-methylethyl)-
alpha-Fellandrene
Dihydro-p-cymene
a-phellandrene
alpha Phellandrene
5-Isopropyl-2-methyl-1,3-cyclohexadiene
4-Isopropyl-1-methyl-1,5-cyclohexadiene
.alpha.-Phellandrene
Phellandrene, alpha-
2-Methyl-5-isopropyl-1,3-cyclohexadiene
FEMA No. 2856
1-Isopropyl-4-methyl-2,4-cyclohexadiene
1-Methyl-4-isopropyl-1,5-cyclohexadiene
alpha-Phellandrene (natural)
2-methyl-5-propan-2-ylcyclohexa-1,3-diene
HSDB 1130
2-methyl-5-(1-methylethyl)-1,3-cyclohexadiene
5-isopropyl-2-methylcyclohexa-1,3-diene
alpha-Phellandren
EINECS 202-792-5
UNII-49JV13XE39
BRN 1280394
(-)-5-Isopropyl-2-methyl-1,3-cyclohexadiene
DTXSID4047593
CHEBI:50035
(-)-2-Methyl-5-(1-methylethyl)-1,3-cyclohexadiene
49JV13XE39
2-methyl-5-(propan-2-yl)cyclohexa-1,3-diene
(+/-)-alpha-Phellandrene
alpha-Phellandrene, stabilized
5-isopropyl-2-methyl-cyclohexa-1,3-diene
DTXCID2027593
a-Phellandrene (Technical Grade)
NSC1842
3-05-00-00342 (Beilstein Handbook Reference)
1-phellandrene
-Phellandrene
1,3-Cyclohexadiene, 2-methyl-5-(1-methylethyl)-; p-Mentha-1,5-diene (8CI); 2-Methyl-5-(1-methylethyl)-1,3-cyclohexadiene; 6-Isopropyl-3-methyl-1,3-Cyclohexadiene; Menthadiene; alpha-Phellandrene
.alpha.-Fellandrene
MFCD00040419
(-)-a-Phellandrene
1,3-Cyclohexadiene, 2-methyl-5-(1-methylethyl)-, (R)-
PHELLANDRENE,ALPHA
.ALPHA. PHELLANDRENE
rho-MENTHA-1,5-DIENE
ALPHA-PHELLANDRENE [FCC]
CHEMBL3188459
FEMA 2856
ALPHA-PHELLANDRENE [HSDB]
.RHO.-MENTHA-1,5-DIENE
.ALPHA.-PHELLANDRENE [MI]
NSC-1842
.ALPHA.-PHELLANDRENE [FHFI]
Tox21_302550
(+/-)-.ALPHA.-PHELLANDRENE
AKOS015913085
CAS-99-83-2
.ALPHA.-PHELLANDRENE, (+/-)-
NCGC00256667-01
1ST40228
AS-75606
FP161129
SY052143
alpha-Phellandrene, natural, >=85%, FG
DB-070271
DB-278900
HY-121615
CS-0082877
M0051
NS00012750
E77746
EN300-7644670
(+/-)-alpha-Phellandrene 100 microg/mL in Methanol
Q19606345
202-792-5