4-Isopropyltoluene supplier

Name
p-Cymene
EINECS 202-796-7
CAS No. 99-87-6
Article Data646
CAS DataBase
Density 0.861 g/cm³
Solubility practically insoluble in water
Melting Point -68 °C
Formula C₁₀H₁₄
Boiling Point 173.9 °C at 760 mmHg
Molecular Weight 134.221
Flash Point 47.2 °C
Transport Information UN 2046 3/PG 3
Appearance colourless liquid with a characteristic odour
Safety 26-36
Risk Codes 10-36/37/38
Molecular Structure
Hazard Symbols Xi
Synonyms p-Cymene(8CI);1-Isopropyl-4-methylbenzene;1-Methyl-4-(1-methylethyl)benzene;1-Methyl-4-isopropylbenzene;2-p-Tolylpropane;4-Cymene;4-Isopropyl-1-methylbenzene;4-Methylisopropylbenzene;Camphogen;Dolcymene;NSC 4162;p-Cymol;p-Isopropyltoluene;p-Methylcumene;p-Methylisopropylbenzene;
PSA 0.00000
LogP 3.11840

4-Isopropyltoluene Chemical Properties

The Molecular Structure of 4-Isopropyltoluene (CAS NO.99-87-6):

Empirical Formula: C₁₀H₁₄
Molecular Weight: 134.2182
IUPAC Name: 1-methyl-4-propan-2-ylbenzene
Appearance: colourless liquid with a characteristic odour
Nominal Mass: 134 Da
Average Mass: 134.2182 Da
Monoisotopic Mass: 134.10955 Da
Index of Refraction: 1.492
Molar Refractivity: 45.26 cm³
Molar Volume: 155.7 cm³
Surface Tension: 28.5 dyne/cm
Density: 0.861 g/cm³
Flash Point: 47.2 °C
Enthalpy of Vaporization: 39.34 kJ/mol
Boiling Point: 173.9 °C at 760 mmHg
Vapour Pressure: 1.65 mmHg at 25°C
Storage temp: Flammables area
Water Solubility: PRACTICALLY INSOLUBLE
Stability: Stable.Flammable.Incompatible with strong oxidizing agents, strong acids, strong bases
InChI
InChI=1/C10H14/c1-8(2)10-6-4-9(3)5-7-10/h4-8H,1-3H3
Smiles
c1(C(C)C)ccc(C)cc1
Synonyms: 4-Cymene ; 4-Methylisopropylbenzene ; 4-Isopropyltoluene ; 1-Methyl-4-isopropylbenzene ; 1-Isopropyl-4-methylbenzene ; Dolcymene ; cymene, 4- ; Cymene para
Product Categories: Analytical Chemistry;Standard Solution of Volatile Organic Compounds for Water & Soil Analysis;Standard Solutions (VOC)

4-Isopropyltoluene Uses

4-Isopropyltoluene (CAS NO.99-87-6) is a constituent of a number of essential oils, most commonly the oil of cumin and thyme.

4-Isopropyltoluene Toxicity Data With Reference

1.		skn-rbt 500 mg/24H MOD		FCTXAV Food and Cosmetics Toxicology. 12 (1974),401.
2.		orl-rat LD50:4750 mg/kg		FCTXAV Food and Cosmetics Toxicology. 2 (1964),327.

Mildly toxic by ingestion. Humans sustain central nervous system effects at low doses. A skin irritant. Flammable liquid. Explosion Hazard: Slight in the form of vapor. To fight fire, use foam, CO₂, dry chemical. When heated to decomposition it emits acrid smoke and fumes.

4-Isopropyltoluene Consensus Reports

Reported in EPA TSCA Inventory.

4-Isopropyltoluene Safety Profile

Hazard Codes: Irritant Xi
Risk Statements: 10-36/37/38
R10: Flammable
R36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements: 26-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S36: Wear suitable protective clothing
RIDADR: UN 2046 3/PG 3
WGK Germany: 2
RTECS: GZ5950000
HazardClass: 3
PackingGroup: III

4-Isopropyltoluene Specification

There are two less common geometric isomers of cymene : o-Cymene , in which the alkyl groups are ortho-substituted, and m-cymene , in which they are meta-substituted . p-Cymene is the only natural isomer.

Product Name

p-Cymene