EU/US Properties Organoleptics Cosmetics Suppliers Safety Safety in use Safety references References Other Blenders Uses Occurrence Synonyms Articles Notes
 

alpha-methyl styrene
(1-methylethenyl)benzene

Supplier Sponsors

Name:prop-1-en-2-ylbenzene
CAS Number: 98-83-9Picture of molecule3D/inchi
ECHA EINECS - REACH Pre-Reg:202-705-0
FDA UNII: D46R9753IK
Nikkaji Web:J3.582C
Beilstein Number:0969405
MDL:MFCD00008859
XlogP3:3.50 (est)
Molecular Weight:118.17870000
Formula:C9 H10
BioActivity Summary:listing
NMR Predictor:Predict (works with chrome, Edge or firefox)
Category:indirect food additives: adhesives and components of coatings
 
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar:Search
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PubMed:Search
NCBI:Search
DG SANTE Food Contact Materials:(1-methylethenyl)benzene
FDA Mainterm (IAUFC):98-83-9 ; ALPHA-METHYLSTYRENE
 
Physical Properties:
Appearance:colorless clear liquid (est)
Assay: 97.00 to 100.00
Food Chemicals Codex Listed: No
Specific Gravity:0.90900 to 0.91300 @ 20.00 °C.
Pounds per Gallon - (est).: 7.573 to 7.606
Refractive Index:1.53700 to 1.54000 @ 20.00 °C.
Melting Point: -24.00 °C. @ 760.00 mm Hg
Boiling Point: 164.00 to 166.00 °C. @ 760.00 mm Hg
Vapor Pressure:2.827000 mmHg @ 25.00 °C. (est)
Vapor Density:4.1 ( Air = 1 )
Flash Point: 114.00 °F. TCC ( 45.56 °C. )
logP (o/w): 3.480
Soluble in:
 alcohol
 water, 108.7 mg/L @ 25 °C (est)
 water, 116 mg/L @ 25 °C (exp)
Insoluble in:
 water
 
Organoleptic Properties:
Odor and/or flavor descriptions from others (if found).
 
Cosmetic Information:
None found
 
Suppliers:
OQEMA
alpha-Methyl Styrene
Santa Cruz Biotechnology
For experimental / research use only.
a-Methylstyrene monomer
Sigma-Aldrich: Aldrich
For experimental / research use only.
a-Methylstyrene 99%
sds
Silver Fern Chemical
Alpha Methyl Styrene (AMS)
Odor: characteristic
Use: Alpha Methyl Styrene (AMS) is primarily used in the manufacture of plasticizers, resins and polymers.
SysKem Chemie
alpha-Methyl Styrol
TCI AMERICA
For experimental / research use only.
alpha-Methylstyrene (stabilized with TBC) >99.0%(GC)
sds
 
Safety Information:
Preferred SDS: View
European information :
Most important hazard(s):
Xi N - Irritant, Dangerous for the environment.
R 10 - Flammable.
R 36/37 - Irritating to eyes and respiratory system.
R 51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
S 02 - Keep out of the reach of children.
S 16 - Keep away from sources of ignition - No Smoking.
S 24/25 - Avoid contact with skin and eyes.
S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S 36 - Wear suitable protective clothing.
S 61 - Avoid release to the environment. Refer to special instructions/safety data sheet.
 
Hazards identification
 
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
 
Pictogram
 
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
oral-rat LD50 4600 mg/kg
Drugs in Japan Vol. 6, Pg. 202, 1982.

oral-mouse LD50 4500 mg/kg
Drugs in Japan Vol. 6, Pg. 202, 1982.

oral-mouse LD50 4500 mg/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.

oral-rat LD50 4900 mg/kg
AMA Archives of Industrial Health. Vol. 14, Pg. 387, 1956.

Dermal Toxicity:
skin-rabbit LD50 16 ml/kg
AMA Archives of Industrial Health. Vol. 14, Pg. 387, 1956.

skin-rabbit LDLo 16 mL/kg
Union Carbide Data Sheet. Vol. 5/24/1977

Inhalation Toxicity:
inhalation-guinea pig LCLo 3000 ppm
"Toxicology and Biochemistry of Aromatic Hydrocarbons," Gerarde, H., New York, Elsevier, 1960Vol. -, Pg. 131, 1960.

inhalation-human TCLo 600 ppm
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.

inhalation-rat LCLo 3000 ppm
"Toxicology and Biochemistry of Aromatic Hydrocarbons," Gerarde, H., New York, Elsevier, 1960Vol. -, Pg. 131, 1960.
 
Safety in Use Information:
Category:
indirect food additives: adhesives and components of coatings
Recommendation for alpha-methyl styrene usage levels up to:
 not for fragrance use.
 
Recommendation for alpha-methyl styrene flavor usage levels up to:
 not for flavor use.
 
Safety References:
European Food Safety Authority (EFSA) reference(s):

Opinion of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in Contact with Food (AFC) on a request from the Commission related to the introduction of a Fat (consumption) Reduction Factor for infants and children.
View page or View pdf

EPI System: View
NIOSH International Chemical Safety Cards:search
NIOSH Pocket Guide:search
Chemical Carcinogenesis Research Information System:Search
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
EPA GENetic TOXicology:Search
EPA Substance Registry Services (TSCA):98-83-9
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :7407
National Institute of Allergy and Infectious Diseases:Data
WISER:UN 2303
WGK Germany:2
prop-1-en-2-ylbenzene
Chemidplus:0000098839
EPA/NOAA CAMEO:hazardous materials
RTECS:98-83-9
 
References:
 prop-1-en-2-ylbenzene
NIST Chemistry WebBook:Search Inchi
Canada Domestic Sub. List:98-83-9
Pubchem (cid):7407
Pubchem (sid):134971462
Pherobase:View
 
Other Information:
(IUPAC):Atomic Weights of the Elements 2011 (pdf)
Videos:The Periodic Table of Videos
tgsc:Atomic Weights use for this web site
(IUPAC):Periodic Table of the Elements
FDA Indirect Additives used in Food Contact Substances:View
CHEBI:View
CHEMBL:View
KEGG (GenomeNet):C14395
HMDB (The Human Metabolome Database):Search
Export Tariff Code:2902.90.9000
ChemSpider:View
Wikipedia:View
Formulations/Preparations:
•typical chemical analysis of alpha-methylstyrene: purity, 99.3% by wt; aldehydes as cho, 10 ppm; peroxides as hydrogen peroxide, 3 ppm; tert-butylcatechol, 15 ppm; alpha-methylstyrene, 0.5% by wt; isopropylbenzene, 0.2% by wt. •97.5% grade
 
Potential Blenders and core components note
None Found
 
Potential Uses:
None Found
 
Occurrence (nature, food, other):note
 not found in nature
 
Synonyms:
 benzene, (1-methylethenyl)-
(1-methyl ethenyl) benzene
1-methyl ethylene benzene
a-methyl styrene
alpha-methyl styrol
1-methyl-1-phenyl ethene
1-methyl-1-phenyl ethylene
1-methyl-1-phenylethene
1-methyl-1-phenylethylene
(1-methylethenyl)benzene
1-methylethenylbenzene
1-methylethylenebenzene
a-methylstyrene
alpha-methylstyrene
a-methylstyrol
(1-methylvinyl)benzene
2-phenyl propene
2-phenyl propylene
1-phenyl-1-methylethylene
2-phenyl-1-propene
2-phenyl-2-propene
2-phenylpropene
2-phenylpropylene
 prop-1-en-2-ylbenzene
1-propene, 2-phenyl-
isopropenyl benzene
isopropenylbenzene
isopropenylbenzol
 styrene, a-methyl-
 

Articles:

PubMed:Spectroscopic [FT-IR and FT-Raman] and theoretical [UV-Visible and NMR] analysis on α-Methylstyrene by DFT calculations.
PubMed:Selective separation of fluorinated compounds from complex organic mixtures by pyrolysis-comprehensive two-dimensional gas chromatography coupled to high-resolution time-of-flight mass spectrometry.
PubMed:A study of photothermal laser ablation of various polymers on microsecond time scales.
PubMed:A computational exploration of imprinted polymer affinity based on voriconazole metabolites.
PubMed:Highly diastereoselective cyclopropanation of α-methylstyrene catalysed by a C2-symmetrical chiral iron porphyrin complex.
PubMed:Revelation of the photoactive species in the photocatalytic dimerization of α-methylstyrene by a dinuclear ruthenium-palladium complex.
PubMed:H(OEt2)2[P(1,2-O2C6Cl4)3]: synthesis, characterization, and application as a single-component initiator for the carbocationic polymerization of olefins.
PubMed:Manganese(III) acetate-mediated oxidative cyclization of a-methylstyrene and trans-stilbene with b-ketosulfones.
PubMed:Reactions of the tetraoxidosulfate(˙-) and hydroxyl radicals with poly(sodium α-methylstyrene sulfonate).
PubMed:Pyrolysis of waste plastic crusts of televisions.
PubMed:Monomer- and polymer radicals of vinyl compounds: EPR and DFT studies of geometric and electronic structures in the adsorbed state.
PubMed:Procedure for fabricating biofunctional nanofibers.
PubMed:Synthesis of Block Copolymers of Varying Architecture Through Suppression of Transesterification during Coordinated Anionic Ring Opening Polymerization.
PubMed:Ru-catalyzed β-selective and enantioselective addition of amines to styrenes initiated by direct arene-exchange.
PubMed:A concise synthesis of 3-(1-alkenyl)isoindolin-1-ones and 5-(1-alkenyl)pyrrol-2-ones by the intermolecular coupling reactions of N-acyliminium ions with unactivated olefins.
PubMed:Biodegradation and In Vitro Biocompatibility of Polyperoxides: Alternating Co-Polymers of Vinyl Monomers and Molecular Oxygen.
PubMed:Enhanced photocatalytic activity of α-methylstyrene oligomerization through effective metal-to-ligand charge-transfer localization on the bridging ligand.
PubMed:Surface-directed spinodal decomposition of solvent-quenched organic transistor blends.
PubMed:Zone-refinement effect in small molecule-polymer blend semiconductors for organic thin-film transistors.
PubMed:Rhenium hydride/boron Lewis acid cocatalysis of alkene hydrogenations: activities comparable to those of precious metal systems.
PubMed:Reversible Morphology Control in Block Copolymer Films via Solvent Vapor Processing: An In Situ GISAXS study.
PubMed:Disposition and metabolism of cumene in F344 rats and B6C3F1 mice.
PubMed:Effect of molecular structure on epoxidation of allylic olefins by atomic oxygen on Au.
PubMed:Polymer screening by radiofrequency glow discharge time-of-flight mass spectrometry.
PubMed:Solarylations via 4-aminophenyl cations.
PubMed:Four mu4-oxo-bridged copper(II) complexes: magnetic properties and catalytic applications in liquid phase partial oxidation reactions.
PubMed:Selective area control of self-assembled pattern architecture using a lithographically patternable block copolymer.
PubMed:A phenomenological one-parameter equation of state for osmotic pressures of PEG and other neutral flexible polymers in good solvents.
PubMed:Oligomerization of styrenes mediated by cationic allyl nickel complexes containing triphenylstibine or triphenylarsine.
PubMed:Control of self-assembly of lithographically patternable block copolymer films.
PubMed:Alkaline reforming of brominated fire-retardant plastics: fate of bromine and antimony.
PubMed:Low temperature conversion (LTC)--an alternative method to treat sludge generated in an industrial wastewater treatment station--batch and continuous process comparison.
PubMed:Structure and properties of small molecule-polymer blend semiconductors for organic thin film transistors.
PubMed:MALDI-TOF/TOF CID study of poly(alpha-methylstyrene) fragmentation reactions.
PubMed:Toxicology and carcinogenesis studies of alpha-methylstyrene (Cas No. 98-83-9) in F344/N rats and B6C3F1 mice (inhalation studies).
PubMed:9-Borabicyclo[3.3.2]decanes and the asymmetric hydroboration of 1,1-disubstituted alkenes.
PubMed:Complex macromolecular chimeras.
PubMed:Calorimetric evaluation of polymerization thermokinetics of styrene, alpha-methylstyrene and trans-beta-methylstyrene.
PubMed:Tandem mass spectrometry characteristics of silver-cationized polystyrenes: internal energy, size, and chain end versus backbone substituent effects.
PubMed:Mechanistic studies of copper(I)-catalyzed allylic amination.
PubMed:AFM, ellipsometry, XPS and TEM on ultra-thin oxide/polymer nanocomposite layers in organic thin film transistors.
PubMed:Nanoconfinement revealed in degradation and relaxation studies of two structurally different polystyrene-clay systems.
PubMed:Pyrolysis of waste electrical and electronic equipment: effect of antinomy trioxide on the pyrolysis of styrenic polymers.
PubMed:Reactions of cumene hydroperoxide mixed with sodium hydroxide.
PubMed:Synthesis of Pd complexes combined with photosensitizing of a ruthenium(II) polypyridyl moiety through a series of substituted bipyrimidine bridges. Substituent effect of the bridging ligand on the photocatalytic dimerization of alpha-methylstyrene.
PubMed:Adsorption geometry and core excitation spectra of three phenylpropene isomers on Cu(111).
PubMed:Interception of the radicals produced in electrophilic fluorination with radical traps (Tempo, Dmpo) studied by electrospray ionization mass spectrometry.
PubMed:Air-assisted addition of grignard reagents to olefins. A simple protocol for a three-component coupling process yielding alcohols.
PubMed:Critical influence of adsorption geometry in the heterogeneous epoxidation of "allylic" alkenes: structure and reactivity of three phenylpropene isomers on Cu(111).
PubMed:Highly selective photo-catalytic dimerization of alpha-methylstyrene by a novel palladium complex with photosensitizing ruthenium(II) polypyridyl moiety.
PubMed:Synthesis of functionalized asymmetric star polymers containing conductive polyacetylene segments by living anionic polymerization.
PubMed:Preparation of monomodal polyelectrolyte complex nanoparticles of PDADMAC/poly(maleic acid-alt-alpha-methylstyrene) by consecutive centrifugation.
PubMed:Self-supported heterogeneous titanium catalysts for enantioselective carbonyl-ene and sulfoxidation reactions.
PubMed:Functional MRI and NMR spectroscopy of an operating gas-liquid-solid catalytic reactor.
PubMed:Relative ototoxicity of 21 aromatic solvents.
PubMed:Needlelike and spherical polyelectrolyte complex nanoparticles of poly(l-lysine) and copolymers of maleic acid.
PubMed:Combined X-ray photoelectron spectroscopy and time-of-flight secondary ion MS surface quantitative analysis of polymer blends with varying mixing thermodynamics.
PubMed:Dynamics of living polymers.
PubMed:Cumene oxidation by cis-[RuIV(bpy)2(py)(O)]2+, revisited.
PubMed:Preparation and adsorption of refined polyelectrolyte complex nanoparticles.
PubMed:Quantitative characterization of a polystyrene/poly(alpha-methylstyrene) blend by MALDI mass spectrometry and size-exclusion chromatography.
PubMed:The NMR microimaging studies of the interplay of mass transport and chemical reaction in porous media.
PubMed:The ultrasensitivity of living polymers.
PubMed:Imino ene reaction catalyzed by ytterbium(III) triflate and TMSCl or TMSOTf.
PubMed:Kinetics of MTO-catalyzed olefin epoxidation in ambient temperature ionic liquids: UV/Vis and 2H NMR study.
PubMed:Isolation and structure of [HC[CH(SiMe(3))(SnMe(3))](2)](+): a remarkably stable sec-alkyl cation.
PubMed:NMR imaging of the distribution of the liquid phase in a catalyst pellet during alpha-methylstyrene evaporation accompanied by its vapor-phase hydrogenation.
PubMed:Catalytically active, recyclable zirconocene supported at cross-links within porous polymer disks.
PubMed:Reversible polymerizations and aggregations.
PubMed:Cationic complexes of iridium: diiodobenzene chelation, electrophilic behavior with olefins, and fluxionality of an Ir(I) ethylene complex.
PubMed:Copper(I)-homoscorpionate catalysts for the preferential, kinetically controlled cis cyclopropanation of alpha-olefins with ethyl diazoacetate.
PubMed:Orientation of alpha-helical poly(L-lysine) in consecutively adsorbed polyelectrolyte multilayers on texturized silicon substrates.
PubMed:Use of aromatic radical-anions in the absence of THF. Tandem formation and cyclization of benzyllithiums derived from the attack of homo- and bishomoallyllithiums on alpha-methylstyrenes: two-pot synthesis of cuparene.
PubMed:Poly(ethylene glycol)-supported bisoxazolines as ligands for catalytic enantioselective synthesis.
PubMed:Thermodynamic suppression of Brownian motion.
PubMed:Metabolism and disposition of alpha-methylstyrene in rats.
PubMed:Wetting in a phase separating polymer blend film: quench depth dependence
PubMed:Direct evidence of a radical mechanism in the addition reaction of iododifluoroesters to olefins by spin trapping
PubMed:Ytterbium(III) triflate/TMSCI: efficient catalyst for imino ene reaction
PubMed:[Microbial degradation of components of waste water from phenol-producing industry].
PubMed:Polymeric microcapsules of alachlor and metolachlor: preparation and evaluation of controlled-release properties.
PubMed:The essential oil of Senecio graveolens (Compositae): chemical composition and antimicrobial activity tests.
PubMed:Characterization of inhaled alpha-methylstyrene vapor toxicity for B6C3F1 mice and F344 rats.
PubMed:Exploiting methyl groups as motional labels for structure analysis in solid polymers.
PubMed:Analysis of Photoablation Products Resulting from Polymer Materials by Supersonic Beam/Multiphoton Ionization/Time-of-Flight Mass Spectrometry.
PubMed:Synthesis and 5HT modulating activity of stereoisomers of 3-phenoxymethyl-4-phenylpiperidines.
PubMed:Expoxidation of styrene and substituted styrenes by whole cells of Mycobacterium sp. M156.
PubMed:The rabbit liver microsomal biotransformation of 1,1-dialkylethylenes: enantioface selection of epoxidation and enantioselectivity of epoxide hydrolysis.
PubMed:Microbial bioconversion of pollutants.
PubMed:[Determination of volatile substances and leachable components in polystyrene food contact wares].
PubMed:Quantification of volatile solvents in blood by static headspace analysis.
PubMed:[Peripheral metabolism of Pseudomonal putida transconjugants degrading chloro- and methylaromatic compounds].
PubMed:[The primary stages of alpha-methylstyrene degradation by a culture of Pseudomonas aeruginosa 8].
PubMed:Effect of styrene and other alkyl benzene derivatives on oxidation of FAD- and NAD-linked substrates in rat liver mitochondria.
PubMed:[Degradation of alpha-methylstyrene and toluene by plasmid-containing bacterial strains of the genus Pseudomonas].
PubMed:[Results and prospects for the hygienic regulation of monomers migrating out of materials designed for contact with food products (styrene, alpha-methylstyrene)].
PubMed:Mutagenicity of para-substituted alpha-methylstyrene oxide derivatives with Salmonella.
PubMed:Identification and quantification of phencyclidine pyrolysis products formed during smoking.
PubMed:Olefin oxygenation and N-dealkylation by dopamine beta-monooxygenase: catalysis and mechanism-based inhibition.
PubMed:[Plasmid participation in the degradation of alpha-methylstyrene].
PubMed:Enzyme-activated irreversible inhibitors of monoamine oxidase: phenylallylamine structure-activity relationships.
PubMed:[Oxidation of alpha-methylstyrene by Pseudomonas cultures].
PubMed:A comparison of cationic polymerization and esterification for end-point detection in the catalytic thermometric titration of organic bases.
PubMed:Induction of sister-chromatid exchanges by styrene analogues in cultured human lymphocytes.
PubMed:Monitoring of workers exposure to low levels of airborne monomers in a polystyrene production plant.
PubMed:[alpha-Methylstyrene absorption through the skin in human beings].
PubMed:[Mechanism of the toxic effect of alpha-methylstyrene].
PubMed:[Gas chromatographic method for the separate determination of cumol, styrene and alpha-methylstyrene in soil].
PubMed:[Use of a kinetic spectrophotometric method for the quantitative determination of alpha-methylstyrene in biological media].
PubMed:[Some enzymological and immunological shifts following prolonged occupational exposure to the effects of alpha-methylstyrene and divinyl].
PubMed:[Determination of urinary atrolactic acid as a test of exposure to the action of alpha-methylstyrene].
PubMed:[Comparative evaluation of some methods for determining alpha-methylstyrene in air].
PubMed:[Liver function in workers engaged in the manufacture of divinyl-alpha-methylstyrene rubber].
PubMed:Biotransformation of ethyl benzene, styrene, and alpha-methylstyrene in man.
PubMed:[Determining alpha-methylstyrene by the infrared spectroscopy method].
PubMed:[SPECTROPHOTOMETRIC DETERMINATION OF STYRENE AND ALPHA-METHYLSTYRENE IN THE EFFLUENTS FROM A DIVINYLSTYRENE (ALPHA-METHYLSTYRENE) RUBBER-PRODUCING PLANT AND IN OPEN WATER BASINS].
PubMed:[Spectrophotometric determination of benzene, isopropylbenzene and alpha-methylstyrene in the air].
PubMed:Steric inhibition of resonance in 1-methyl-2-isopropenylbenzene.
 
Notes:
None found
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