PRODUCT Properties
| Melting point: | 123-125 °C |
| Boiling point: | 69-80℃ |
| Density | 1.1150 (rough estimate) |
| refractive index | 1.5090 (estimate) |
| storage temp. | 2-8°C |
| solubility | toluene: soluble0.5g/10 mL, clear to faintly turbid, yellow to brown |
| form | Crystalline Powder |
| color | Yellow to brown |
| BRN | 2041348 |
| InChI | 1S/C8H8O2/c1-5-3-8(10)6(2)4-7(5)9/h3-4H,1-2H3 |
| InChIKey | MYKLQMNSFPAPLZ-UHFFFAOYSA-N |
| SMILES | CC1=CC(=O)C(C)=CC1=O |
| CAS DataBase Reference | 137-18-8 |
| EPA Substance Registry System | 2,5-Cyclohexadiene-1,4-dione, 2,5-dimethyl- (137-18-8) |
Description and Uses
2,5-Dimethyl-1,4-benzoquinone may be used in a key step involved in the total synthesis of (?)-cyathin A3.
Safety
| Symbol(GHS) |  GHS06 |
| Signal word | Danger |
| Hazard statements | H301-H315-H319-H335 |
| Precautionary statements | P301+P310+P330-P302+P352-P305+P351+P338 |
| target organs | Respiratory system |
| PPE | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
| Hazard Codes | Xn |
| Risk Statements | 22-36/37/38 |
| Safety Statements | 26-37/39 |
| RIDADR | UN 2811 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | DK4800000 |
| TSCA | TSCA listed |
| HS Code | 29146990 |
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
| Hazard Classifications | Acute Tox. 3 Oral Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
