FC-0608692
Caffeic acid
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About This Item
| Molecular Formula | C9H8O4 |
| CAS Number | 501-16-6 |
| Appearance | 3,4-dihydroxycinnamic acid appears as yellow prisms or plates (from chloroform or ligroin) or pale yellow granules. Alkaline solutions turn from yellow to orange. (NTP, 1992) |
Properties
Chemical Identifiers
| IUPAC Name | (E)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid |
| SMILES | C1=CC(=C(C=C1/C=C/C(=O)O)O)O |
| InChI Key | QAIPRVGONGVQAS-DUXPYHPUSA-N |
| InChI | InChI=1S/C9H8O4/c10-7-3-1-6(5-8(7)11)2-4-9(12)13/h1-5,10-11H,(H,12,13)/b4-2+ |
Physical Properties
| Boiling Point | 416.8±35.0 °C at 760 mmHg |
| Melting Point | Decomposes at 223-225 °C (Softens at 194 °C). |
| Flash Point | 220.0±22.4 °C |
| Density | 1.5±0.1 g/cm3 |
Safety Information
Hazard Class
Warning
Flash Point
220.0±22.4 °C
Please refer to the Safety Data Sheet (SDS) for complete handling, storage, and disposal instructions. Follow all applicable regulations when working with this chemical reagent.