| 5-Methyl-2-thiophenecarboxylic acid Basic information |
| Product Name: | 5-Methyl-2-thiophenecarboxylic acid |
| Synonyms: | RARECHEM AL BE 0181;TIMTEC-BB SBB004146;2-Carboxy-5-methylthiophene;2-Methyl-5-thiophenecarboxylic acid;2-Thiophenecarboxylic acid, 5-methyl-;5-Methyl-2-thiophenecaroboxylic acid;5-Methylthiophen-2-carboxylic acid;5-METHYL-2-THENOIC ACID |
| CAS: | 1918-79-2 |
| MF: | C6H6O2S |
| MW: | 142.18 |
| EINECS: | 217-640-3 |
| Product Categories: | Building Blocks;Heterocyclic Building Blocks;Thiophene&Benzothiophene;Organic acids;Heterocyclic Compounds;Thiophenes;Acids and Derivatives;Heterocycles;Thiophens |
| Mol File: | 1918-79-2.mol |
| 5-Methyl-2-thiophenecarboxylic acid Chemical Properties |
| Melting point | 135-138 °C(lit.) |
| Boiling point | 229.75°C (rough estimate) |
| density | 1.365 (estimate) |
| refractive index | 1.5300 (estimate) |
| storage temp. | 2-8°C(protect from light) |
| form | Liquid |
| pka | 3.71±0.10(Predicted) |
| color | Clear |
| BRN | 113857 |
| CAS DataBase Reference | 1918-79-2(CAS DataBase Reference) |
| NIST Chemistry Reference | 5-Methyl-2-thiophenecarboxylic acid (keto form)(1918-79-2) |
| Safety Information |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 22-24/25 |
| WGK Germany | 3 |
| HazardClass | IRRITANT |
| HS Code | 29309090 |
| MSDS Information |
| Provider | Language |
|---|---|
| 5-Methyl-2-thiophenecarboxylic acid | English |
| SigmaAldrich | English |
| ACROS | English |
| ALFA | English |
| 5-Methyl-2-thiophenecarboxylic acid Usage And Synthesis |
| Chemical Properties | BEIGE CRYSTALLINE POWDER |
| Synthesis Reference(s) | Tetrahedron Letters, 15, p. 2373, 1974 DOI: 10.1016/S0040-4039(01)92259-2 |
| 5-Methyl-2-thiophenecarboxylic acid Preparation Products And Raw materials |
| Preparation Products | CIS-3-HEXENOIC ACID-->5-Methylthiophene-2-carboxaldehyde-->Methyl 5-(bromomethyl)-2-thiophenecarboxylate |
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