| Product Name | Caffeic acid |
| CAS No. | 331-39-5 |
| Synonyms | 3,4-Dihydroxycinnamic acid; 3-(3,4-dihydroxyphenyl)prop-2-enoic acid; (2E)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid; (2Z)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid; (2E)-3-(3,4-dihydroxyphenyl)prop-2-enoate |
| InChI | InChI=1/C9H8O4/c10-7-3-1-6(5-8(7)11)2-4-9(12)13/h1-5,10-11H,(H,12,13)/p-1/b4-2+ |
| Molecular Formula | C9H7O4 |
| Molecular Weight | 179.15 |
| Melting point | 194-198℃ (dec.) |
| Boiling point | 416.8°C at 760 mmHg |
| Flash point | 220°C |
| Water solubility | soluble in hot water |
| Hazard Symbols |  Xn:Harmful; |
| Risk Codes | R36/37/38:; R40:; |
| Safety | S26:; S36/37/39:; |
331-39-5 caffeic acid
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