August 22, 2025 | UR Gate
Aspirin (C9H8O4) Structure, Properties and Nomenclature
.jpg)
Discover Aspirin (C9H8O4), a widely used NSAID. Learn its chemical structure, key properties, IUPAC name, synonyms, and its role in pain relief and cardiovascular health.
What is Aspirin (C9H8O4)?
Aspirin, chemically known as acetylsalicylic acid (ASA), is one of the most widely recognized and utilized medications globally. It's a nonsteroidal anti-inflammatory drug (NSAID) famous for its analgesic (pain-relieving), antipyretic (fever-reducing), and anti-inflammatory properties. While commonly found in medicine cabinets for treating headaches, minor aches, and fever, aspirin also plays a significant role in preventing cardiovascular events like heart attacks and strokes by inhibiting platelet aggregation. Its journey from a plant-derived compound to a synthesized pharmaceutical staple highlights its enduring importance in modern medicine.
Properties of Aspirin (C9H8O4)
| Property | Value |
|---|---|
| Molecular Formula | C₉H₈O₄ |
| Molecular Weight | 180.16 g/mol |
| Density | 1.40 g/mL (approximate) |
| Boiling Point | Decomposes at 284 °C (approximate) |
| Melting Point | 135 °C (approximate) |
| Hybridization | Aromatic carbons: sp²; Carboxylic carbon: sp³; Ester carbonyl carbon: sp² |
| Appearance | White, crystalline powder |
| Solubility | Slightly soluble in water; soluble in ethanol, ether, and chloroform |
Nomenclature of Aspirin
- Common name: Aspirin
- IUPAC name: 2-acetoxybenzoic acid
Synonyms
- Acetylsalicylic acid
- 2-Acetoxybenzoic acid
- o-Acetoxybenzoic acid
- 2-Carboxyphenyl acetate
- ASA (Acetylsalicylic Acid)
- Empirin
- Bayer Aspirin
- Salicylic acid acetate
- Acesal
- Acetal
