CAS 622-97-9 4-Methylstyrene - Materials / Alfa Chemistry

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4-Methylstyrene

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Catalog Number

ACM622979-1

CAS Number

622-97-9

Product Name

4-Methylstyrene

Structure

Category

Monomers

Description

P-methylstyrene appears as a clear colorless liquid with an aromatic odor. Usually shipped with an inhibitor such as tert-butyl catechol added May polymerize if contaminated or subjected to heat. If polymerization takes place inside a closed container, the container may rupture violently. Vapors irritate the mucous membranes. Less dense than water and insoluble in water. Hence floats on water. Used in making plastics, especially as a monomer for polyesters.;Liquid;COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.

IUPAC Name

1-ethenyl-4-methylbenzene

Molecular Weight

118.18g/mol

Molecular Formula

CH3C6H4CH=CH2;C9H10;C9H10

Canonical SMILES

CC1=CC=C(C=C1)C=C

InChI

InChI=1S/C9H10/c1-3-9-6-4-8(2)5-7-9/h3-7H,1H2,2H3

InChI Key

JLBJTVDPSNHSKJ-UHFFFAOYSA-N

Boiling Point

172.8 °C;172 °C;173 °C

Melting Point

-34.1 °C;-37.8 °C;-34 °C

Flash Point

125 to 127 °F (NFPA, 2010);46 °C (115 °F) - closed cup;52.8 °C

Density

0.9173 g/cu cm at 25 °C;Relative density (water = 1): 0.897

Solubility

7.53e-04 M;In water, 89 mg/L at 25 °C;Insoluble in water;Soluble in benzene;Solubility in water: none

Color/Form

Liquid

Complexity

86.2

Covalently-Bonded Unit Count

EC Number

210-762-8;215-292-7

Exact Mass

118.07825g/mol

Formal Charge

Heat of Vaporization

6.20X10+07 J/kmol at 25 °C

Heavy Atom Count

ICSC Number

0735

Log P

log Kow = 3.35;3.580

MeSH Entry Terms

1-ethenyl-4-methylbenzene;4-ethenylmethylbenzene;4-vinyltoluene

Monoisotopic Mass

118.07825g/mol

Other Experimental

Liquid molar volume = 0.129067 cu m/kmol; heat of formation = 1.1464X10+08 J/kmol;Henry's Law constant = 3.2X10-3 atm-cu m/mole at 25 °C (est);Hydroxyl radical reaction rate constant = 3.15X10-11 cu cm/molec-sec at 25 °C;Ozone reaction rate constant = 2.1X17-11 cu cm/molec-sec at 25 °C

Refractive Index

Index of refraction: 1.5420 at 20 °C/D

Rotatable Bond Count

RTECS Number

WL5076000

Stability

Stable under recommended storage conditions.

UNII

HJ7H0G60Q0

UN Number

1993;2618

Vapor Density