| Product Identification | Back to Contents | 【Product Name】
Protocatechualdehyde | 【Synonyms】
1,2-Dihydroxy-4-formylbenzene
3,4-Dihydroxybenzaldehyde
3,4-Dihydroxybenzenecarbonal
Protocatechuic aldehyde
Rancinamycin IV | 【CAS】
139-85-5 | 【Formula】
C7H6O3 | 【Molecular Weight】
138.12 | 【EINECS】
205-377-7 | 【RTECS】
UL0380000 | 【RTECS Class】
Other | 【Merck】
12,8079 | 【Beilstein/Gmelin】
774381 | 【Beilstein Reference】
4-08-00-01762 | 【EC Class】
irritant |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
Beige to brown. | 【Solubility in water】
Slightly soluble | 【Melting Point】
150 - 155 | 【Boiling Point】
295 | 【Vapor Pressure】
0.001 (25 C) | 【Density】
1.505 g/cm3 | 【pKa/pKb】
7.59 (pKa) | 【Partition Coefficient】
1.09 | 【Heat Of Vaporization】
55.7 kJ/mol | 【Heat Of Combustion】
-3100 kJ/mol |
| First Aid Measures | Back to Contents | 【Ingestion】
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid. | 【Inhalation】
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. | 【Skin】
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. | 【Eyes】
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. |
| Handling and Storage | Back to Contents | 【Storage】
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. | 【Handling】
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. |
| Hazards Identification | Back to Contents | 【Ingestion】
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. | 【Inhalation】
May cause respiratory tract irritation. | 【Skin】
May cause skin irritation. | 【Eyes】
May cause eye irritation. | 【EC Risk Phrase】
R 36/37/38 | 【EC Safety Phrase】
S 26 36 |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. | 【Respirators】
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary. |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
147 | 【Fire Fighting】
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire, use water fog, dry chemical, carbon dioxide, or regular foam. |
| Stability and Reactivity | Back to Contents | 【Disposal Code】
3 | 【Stability】
Stable under normal temperatures and pressures. | 【Incompatibilities】
Strong oxidizing agents, strong bases. | 【Decomposition】
Carbon monoxide, carbon dioxide. |
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