CAS 98-86-2: Acetophenone (C8H8O)
Identity
| CAS Number | 98-86-2 |
| Molecular Formula | C8H8O |
| IUPAC Name | 1-phenylethan-1-one |
| Molecular Weight | 120.15 g/mol |
| SMILES | CC(=O)c1ccccc1 |
| Synonyms | acetophenone, methyl phenyl ketone, phenylethanone, 1-phenylethanone |
2D Structure
Physical Properties
| Density | 1.028 g/mL at 25°C |
| Boiling Point | 202.0°C |
| Melting Point | 19.6°C |
| Flash Point | 82.0°C |
| Vapor Pressure | 0.04 kPa at 20°C |
| Refractive Index | nD = 1.534 |
| Dielectric Constant | ε = 17.4 |
Safety & GHS Classification
Irritant
- H302: Harmful if swallowed
- H319: Causes serious eye irritation
- H332: Harmful if inhaled
Storage: Store in well-ventilated area. Solidifies below 20°C — warm gently to re-melt if needed. Keep away from heat and strong oxidizers. Store in amber glass if light-sensitive.
Material Compatibility Matrix
Plastics
| Material | Rating |
|---|---|
| PTFE | Excellent |
| PVC | Fair |
| PE | Good |
| PP | Good |
| PEEK | Excellent |
| PVDF | Good |
Rubbers
| Material | Rating |
|---|---|
| Viton | Good |
| NBR | Good |
| EPDM | Excellent |
| Silicone | Good |
| FKM | Good |
Metals
| Material | Rating |
|---|---|
| Stainless 316 | Excellent |
| Aluminum | Excellent |
| Copper | Excellent |
| Brass | Excellent |
Applications
- Flavor and fragrance ingredient (cherry, almond notes)
- Pharmaceutical intermediate (pseudoephedrine, etc.)
- Solvent for cellulose esters and resins
- Polymerization catalyst component
- Laboratory reagent for organic synthesis
- Perfume fixative
External References: PubChem