622-97-9
| Name | 4-Methylstyrene |
| CAS | 622-97-9 |
| EINECS(EC#) | 210-762-8 |
| Molecular Formula | C9H10 |
| MDL Number | MFCD00008621 |
| Molecular Weight | 118.18 |
| MOL File | 622-97-9.mol |
Chemical Properties
| Appearance | CLEAR COLOURLESS TO LIGHT YELLOW LIQUID |
| Melting point | -34 °C |
| Boiling point | 170-175 °C(lit.) |
| density | 0.897 g/mL at 25 °C(lit.) |
| vapor pressure | <1 mm Hg ( 20 °C) |
| refractive index | n |
| Fp | 114 °F |
| storage temp. | 2-8°C |
| solubility | 0.089g/l |
| form | Liquid |
| color | Clear colorless to light yellow |
| explosive limit | 1.1-5.2%(V) |
| Water Solubility | Miscible with benzene. slightly miscible with water. |
| BRN | 1209317 |
| Henry's Law Constant | 3.1×10-3 mol/(m3Pa) at 25℃, Duchowicz et al. (2020) |
| Exposure limits | TLV-TWA: 10 ppm |
| InChI | 1S/C9H10/c1-3-9-6-4-8(2)5-7-9/h3-7H,1H2,2H3 |
| InChIKey | JLBJTVDPSNHSKJ-UHFFFAOYSA-N |
| SMILES | Cc1ccc(C=C)cc1 |
Safety Data
| Symbol(GHS) |    GHS02,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H226-H304-H411 |
| Precautionary statements | P210-P273-P301+P310+P331 |
| Hazard Codes | Xn |
| Risk Statements | |
| Safety Statements | |
| RIDADR | UN 2618 3/PG 3 |
| WGK Germany | 3 |
| RTECS | WL5076000 |
| Autoignition Temperature | 959 °F |
| TSCA | Yes |
| REACH Registrations | Active |
| HazardClass | 3 |
| PackingGroup | III |
| HS Code | 29029050 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Aquatic Chronic 2 Asp. Tox. 1 Flam. Liq. 3 |
| Hazardous Substances Data | 622-97-9(Hazardous Substances Data) |