α-Methylstyrene
ALDRICH/M80903 - 99%, contains 15 ppm p-tert-butylcatechol as inhibitor
Synonym: 2-Phenylpropene; Isopropenylbenzene
CAS Number: 98-83-9
Empirical Formula (Hill Notation): C9H10
Molecular Weight: 118.18
EC Number: 202-705-0
MDL Number: MFCD00008859
Linear Formula: C6H5C(CH3)=CH2
Product Type: Chemical
assay | 99% |
autoignition temp. | 1065 °F |
bp | 165-169 °C (lit.) |
contains | 15 ppm p-tert-butylcatechol as inhibitor |
density | 0.909 g/mL at 25 °C (lit.) |
expl. lim. | 6.1 % |
form | liquid |
InChI | 1S/C9H10/c1-8(2)9-6-4-3-5 |
InChI key | XYLMUPLGERFSHI-UHFFFAOYSA |
mp | −24 °C (lit.) |
Quality Level | 200 ![]() |
refractive index | n |
SMILES string | CC(=C)c1ccccc1 |
storage temp. | 2-8°C |
vapor density | 4.1 (vs air) |
vapor pressure | 2.1 mmHg ( 20 °C) |
Application: | α-Methylstyrene can be used: • As a monomer to prepare “Phene” monomer for photopolymerizable dental resin composites to reduce their polymerization shrinkage. α-Methylstyrene has a low double bond concentration suitable for the preparation of low volumetric shrinkage and shrinkage stress resilient resin composites. • As a monomer to prepare poly(α-methylstyrene) polymer which can be used as an additive to fabricate organic thin film transistors. This polymer promotes the growth of uniformly aligned semiconductor crystals with significantly improved orientation. • As a precursor to synthesize 3,4-dihydropyrans with therapeutic potential. |
General description: | -Methylstyrene is an aromatic alkyl-substituted styrene monomer with a relatively high boiling point. It is widely used as a monomer to synthesize thermoplastic composite resins applied in adhesives, and coatings that require high-temperature stability. It can also participate as a precursor in regioselective and diastereoselective synthesis of natural products, pharmaceuticals, and other structurally diverse compounds. |
Packaging: | 1 L in glass bottle |
Packaging: | 5, 100 mL in glass bottle |
Symbol | ![]() ![]() ![]() ![]() |
Signal word | Danger |
Hazard statements | H226 - H304 - H317 - H319 - H335 - H361fd - H411 |
Precautionary statements | P210 - P273 - P280 - P301 + P310 - P303 + P361 + P353 - P331 |
Hazard Codes | Xi,N |
Risk Statements | 10-36/37-51/53 |
Safety Statements | 61 |
RIDADR | UN 2303 3 / PGIII |
WGK Germany | WGK 2 |
Flash Point(F) | 114.8 °F - closed cup |
Flash Point(C) | 46 °C - closed cup |
Purity | 99% |
bp | 165-169 °C (lit.) |
mp | −24 °C (lit.) |
Density | 0.909 g/mL at 25 °C (lit.) |
Refractive Index | n |
Storage Temp. | 2-8°C |
UNSPSC | 12162002 |