Reported in EPA TSCA Inventory.

OSHA PEL: TWA 50 ppm; STEL 100 ppm
ACGIH TLV: TWA 50 ppm; STEL 100 ppm
DFG MAK: 100 ppm (490 mg/m³)
DOT Classification:  3; Label: Flammable Liquid

For occupational chemical analysis use NIOSH: Hydrocarbons, Aromatic, 1501.

1. Introduction of 2-Phenyl-1-propene
2-Phenyl-1-propene, with the CAS registry number of 98-83-9, its IUPAC name is Isopropenylbenzene. It is also known as 1-Phenyl-1-methylethylene, alpha-Methylstyrene. 2-Phenyl-1-propene is a chemical intermediate used in the manufacture of plasticizers, resins and polymers. It is a co-product formed in a variation of the cumene process.

2. Properties of 2-Phenyl-1-propene
(1)ACD/LogP: 3.24; (2)ACD/LogD (pH 5.5): 3.239; (3)ACD/LogD (pH 7.4): 3.239; (4)ACD/BCF (pH 5.5): 170.577; (5)ACD/BCF (pH 7.4): 170.577; (6)ACD/KOC (pH 5.5): 1377.898; (7)ACD/KOC (pH 7.4): 1377.898; (8)#Freely Rotating Bonds: 1; (9)Index of Refraction: 1.51; (10)Molar Refractivity: 40.452 cm³; (11)Molar Volume: 135.246 cm³; (12)Surface Tension: 28.455 dyne/cm; (13)Density: 0.874 g/cm³; (14)Flash Point: 45.556 °C; (15)Enthalpy of Vaporization: 38.26 kJ/mol; (16)Boiling Point: 162.457 °C at 760 mmHg; (17)Vapour Pressure: 2.827 mmHg at 25°C.

3. Structure Descriptors of 2-Phenyl-1-propene
(1)Canonical SMILES: CC(=C)C1=CC=CC=C1
(2)InChI: InChI=1S/C9H10/c1-8(2)9-6-4-3-5-7-9/h3-7H,1H2,2H3
(3)InChIKey: XYLMUPLGERFSHI-UHFFFAOYSA-N

4. Toxicity of 2-Phenyl-1-propene

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
guinea pig	LCLo	inhalation	3000ppm (3000ppm)		"Toxicology and Biochemistry of Aromatic Hydrocarbons," Gerarde, H., New York, Elsevier, 1960Vol. -, Pg. 131, 1960.
human	TCLo	inhalation	600ppm (600ppm)	SENSE ORGANS AND SPECIAL SENSES: OTHER CHANGES: OLFACTION SENSE ORGANS AND SPECIAL SENSES: OTHER: EYE	AMA Archives of Industrial Health. Vol. 14, Pg. 387, 1956.
mouse	LD50	oral	4500mg/kg (4500mg/kg)	BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: CYANOSIS	Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 28(12), Pg. 14, 1963.
rabbit	LDLo	skin	16mL/kg (16mL/kg)		Union Carbide Data Sheet. Vol. 5/24/1977,
rat	LCLo	inhalation	3000ppm (3000ppm)		"Toxicology and Biochemistry of Aromatic Hydrocarbons," Gerarde, H., New York, Elsevier, 1960Vol. -, Pg. 131, 1960.
rat	LD50	oral	4900mg/kg (4900mg/kg)		AMA Archives of Industrial Health. Vol. 14, Pg. 387, 1956.

5. Safety Information of 2-Phenyl-1-propene
When you are using this chemical, please be cautious about it as the following:
This chemical may cause inflammation to the skin or other mucous membranes. There will be a dangerous for the environment. It is irritating to eyes and respiratory system. You must avoid releasing it to the environment. When using it, please refer to special instructions/safety data sheet.

6. Use of 2-Phenyl-1-propene
2-Phenyl-1-propene can be used to produce anilino-3 phenyl-2 propene with N-phenyl-hydroxylamine by heating. This reaction will need reagent [Cu(CH₃CN)₄]PF₆ and solvent dioxane. The yield is about 30 %.