Arachidonic Acid
ARA
- CAS
- 506-32-1
- EC
- 208-033-4
- Sectors
- Food & Nutrition, Nutraceuticals & Supplements, Pharma & Healthcare
Arachidonic Acid (CAS 506-32-1) is a polyunsaturated omega-6 fatty acid essential to cell signaling and prostaglandin synthesis, appearing as a colorless to light yellow oil that is produced industrially by fungal or algal fermentation and used in infant nutrition, dietary supplements, and pharmaceutical formulations.
Typical Properties
| Molecular formula | C20H32O2 |
|---|---|
| Molecular weight | 304.47 g/mol |
| Appearance | liquid |
| Form | oil |
| Color | colorless to light yellow |
| Melting point | -49.5 °C |
| Boiling point | 170 °C |
| Density | 0.9247 g/cm³ @ Temp: 20 °C |
| Water solubility | PRACTICALLY INSOLUBLE |
| Flash point | >230 °F |
| GHS signal word | Warning · Irritant / harmful |
| HS code | 29161900 |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Arachidonic Acid
Applications
Used in infant nutrition, dietary supplements, and pharmaceutical formulations supporting cognitive and immune functions. It also serves as a biochemical research reagent.
Safety & Risks
Generally recognized as safe at nutritional concentrations. Sensitive to oxidation; nitrogen blanketing and antioxidants recommended.
Packaging
Supplied as oil or encapsulated powder in aluminum containers or nitrogen-sealed drums. Store cool, dark, and oxygen-free.