| [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. Extinguishing media: Use agent most appropriate to extinguish fire. | |
| [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. Remove 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 immediately. | |
| [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. | |
| [EC Risk Phrase] R 36/37/38 | |
| [EC Safety Phrase] S 26 36 | |
| [Personal Protection] Eyes: Wear chemical goggles. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin. | |
| [Respirators] A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use. | |
| [Exposure Effects] The toxicological properties of this material have not been investigated. | |
| [Appearance] Light yellow. | |
| [Solubility in water] Very soluble | |
| [Melting Point] 139 | |
| [Density] 1.415 g/cm3 | |
| [pKa/pKb] 3.75 (pKa) | |
| [Product Name] 5-Methyl-2-thiophenecarboxylic acid | |
| [Synonyms] 5-Methyl-2-thiophenecarboxylic acid 5-Methylthiophene-2-carboxylic acid | |
| [CAS] "CASEN_1918-79-2.htm">1918-79-2 | |
| [Formula] C6H6O2S | |
| [Molecular Weight] 142.16999999999999 | |
| [EINECS] 217-640-3 | |
| [Beilstein/Gmelin] 113857 | |
| [Beilstein Reference] 5-18-06-00219 | |
| [Small spills/leaks] Clean up spills immediately, using the appropriate protective equipment. | |
| [Stability] Stable under normal temperatures and pressures. | |
| [Incompatibilities] Strong oxidizing agents. | |
| [Decomposition] Irritating and toxic fumes and gases. |
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