| Product Identification | Back to Contents | 【Product Name】
Caffeic acid | 【Synonyms】
3-(3,4-Dihydroxyphenyl)-2-propenoic acid
3,4-Dihydroxybenzeneacrylic acid
3,4-Dihydroxycinnamic acid
4-(2-Carboxyethenyl)-1,2-dihydroxybenzene
4-(2'-Carboxyvinyl)-1,2-dihydroxybenzene | 【CAS】
331-39-5 | 【Formula】
C9H8O4 | 【Molecular Weight】
180.16 | 【EINECS】
206-361-2 | 【RTECS】
GD8950000 | 【RTECS Class】
Tumorigen; Mutagen; Reproductive Effector; Natural Product | 【Merck】
13,1635 | 【Beilstein/Gmelin】
2210883 | 【Beilstein Reference】
2-10-00-00294 | 【EC Class】
carcinogenic |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
Yellow prisms or plates (from chloroform or ligroin) or pale yellow granules. Alkaline solutions turn from yellow to orange. | 【Solubility in water】
Very soluble | 【Melting Point】
234 - 237 | 【Boiling Point】
366 | 【pKa/pKb】
4.04 (pKa) | 【Partition Coefficient】
1.15 | 【Usage】
Inhibitor of poly(ethylene glycol) oxidation. |
| First Aid Measures | Back to Contents | 【Ingestion】
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately. | 【Inhalation】
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. | 【Skin】
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. | 【Eyes】
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. |
| Handling and Storage | Back to Contents | 【Storage】
Store in a cool, dry place. Keep container closed when not in use. | 【Handling】
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. |
| Hazards Identification | Back to Contents | 【Inhalation】
The toxicological properties of this substance have not been fully investigated. | 【Skin】
No information regarding skin irritation and other potential effects was found. | 【Eyes】
May cause eye irritation. No information regarding eye irritation and other potential effects was found. | 【Ingestion】
The toxicological properties of this substance have not been fully investigated. | 【EC Risk Phrase】
R 36/37/38 40 | 【EC Safety Phrase】
S 22 26 36/37/39 |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
Eyes: Wear safety glasses and chemical goggles if splashing is possible. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin. | 【Respirators】
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions. | 【Exposure Effects】
The toxological properties of this substance have not been fully investigated. |
| Fire Fighting Measures | Back to Contents | 【Fire Fighting】
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. | 【Fire Potential】
This material is probably combustible. |
| Stability and Reactivity | Back to Contents | 【Disposal Code】
4 | 【Stability】
Stable under normal temperatures and pressures. | 【Incompatibilities】
Strong oxidizing agents - strong bases. | 【Decomposition】
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide. |
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