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
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: M80903-100ML.
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: M80903-1L.
| 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 |     GHS02,GHS07,GHS08,GHS09 |
| 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 |