Basic information
- CAS
1195-32-0- Standard SMILES
C=C(C)c1ccc(C)cc1- InChIKey
MMSLOZQEMPDGPI-UHFFFAOYSA-N- Molecular formula
- C10H12
- Average molar mass
- 132.2 g/mol
- Monoisotopic mass
- 132.09390038
Overview
P-Mentha-1,3,5,8-tetraene is a monocyclic hydrocarbon and a monoterpene.
Names & identifiers
- Preferred name
- p-alpha-Dimethyl styrene
- IUPAC
- 1-methyl-4-prop-1-en-2-ylbenzene
- English name
- alpha,p-Dimethylstyrene
- Molecular formula
- C10H12
- Molecular weight
- 132.2
Names & synonyms
1195-32-0Dehydro-p-cymene2-P-Tolylpropenep-cymenenep,alpha-Dimethylstyrene1-Methyl-4-isopropenylbenzene4-Methylisopropenylbenzene2-(P-Methylphenyl)propeneIsopropenyltoluene, p-p-alpha-DimethylstyreneBENZENE, 1-METHYL-4-(1-METHYLETHENYL)-1-Isopropenyl-4-methylbenzene
Show more names
1-Methyl-4-(prop-1-en-2-yl)benzenep-Mentha-1,3,5,8-tetraene4-ISOPROPENYLTOLUENEFEMA 31441-methyl-4-(1-methylethenyl)benzeneDIHYDRO PARACYMENE
p-alpha-Dimethyl styreneMethyl-p-isopropenylbenzene4-Methyl-alpha-methylstyrenealpha-Methyl-P-methylstyreneFEMA No. 3144Styrene, P-alpha-dimethyl-NSC 361058Dimethylstyrene, p-alpha-
Database identifiers
- CAS
1195-32-0- PubChem CID
- 62385
- DTXSID
DTXSID7047564- ChEBI
Properties
Computed structural properties
- XLogP
- 3.7
- Topological polar surface area
- 0 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 0
- Rotatable bonds
- 1
- Heavy atoms
- 10
- Formal charge
- 0
- Complexity
- 116
Experimental & physicochemical properties
SpringerMaterials PropertiesBoiling point
FragrancesFragrance Ingredient (p,alpha-Dimethylstyrene) -> IFRA transparency List
Food AdditivesFLAVORING AGENT OR ADJUVANT -> FDA Substance added to food
Density0.846-0.854
Flavoring AgentsEU Flavoring substances
Solubility
Insoluble in water; soluble in oils
Soluble (in ethanol)
Boiling Point
186.00 to 189.00 °C. @ 760.00 mm Hg
186-189 °C
Melting Point-20 °C
Refractive Index1.532-1.535
Physical Description
Liquid
Colourless mobile liquid; citrusy-lemon like aroma
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 7.1% (104 of 1465) of reports.
Danger
H304 (88.9%): May be fatal if swallowed and enters airways [Danger Aspiration hazard]
P301+P316, P331, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 1465 reports by companies from 14 notifications to the ECHA C&L Inventory.
Hazard information
Regulatory Information
Chemical: Benzene, 1-methyl-4-(1-methylethenyl)-
Commission Regulation (EC) No 1565/2000 (Repealed by Com. Implementing Reg. (EU) No 872/2012)
Benzene, 1-methyl-4-(1-methylethenyl)-: Does not have an individual approval but may be used under an appropriate group standard
Hazard Classes and CategoriesAsp. Tox. 1 (88.9%)
Safety data
- PPE
- Eyeshields, Gloves, type ABEK (EN14387) respirator filter
- wgk
- 2
- tsca
- TSCA listed
- hs_code
- 29029090
- risk_code
- 36/37/38
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xi
- safety_code
- 26-36-37/39
- Storage Class
- 10 - Combustible liquids
- target organs
- Respiratory system
Chemistry & industry
Pharmacology
Cellular LocationsExtracellular
Uses & manufacturing
Use Classification
Fragrance Ingredients
Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes
Flavoring Agents -> JECFA Flavorings Index
Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes
General Manufacturing InformationBenzene, 1-methyl-4-(1-methylethenyl)-: ACTIVE
Applications
OccurrenceReported found in pepper, coffee, anise and parsley
Usesα, p-dimethylstyrene has been suggested for use in perfume compositions, mainly as a component in certain artificial essential oils. In Lemon fragrances for industrial masking purposes it may introduce lift, power and freshness.
General Descriptionp,α-Dimethylstyrene has been identified as one of the volatile flavor constituents in litchi, essential oils of distilled Mexican lime and parsley.
Preparation methods
PreparationBy passing a stream of p-cymene and water vapors over activated aluminum oxide at 730°C.
Upstream & downstream products
Upstream raw materials
Related reactions
0 records
No reaction records under the current filter.
Compound notes
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