ALPHA-THENOIC ACID
2-Thiophenecarboxylic acid
CAS: 527-72-0
Molecular Formula: C5H4O2S
ALPHA-THENOIC ACID - Names and Identifiers
| Name | 2-Thiophenecarboxylic acid |
| Synonyms | AKOS B022791 2-THENOIC ACID 2-Thenoic acid AKOS BBS-00003739 2-THIOPHENIC ACID ALPHA-THENOIC ACID LABOTEST-BB LT02016392 thiophene-2-carboxylate 2-Thiophenecaroxylic Acid 2-THIOPHENECARBOXYLIC ACID 2-Thiophenecarboxylic acid Thiophene-2-carboxylic acid |
| CAS | 527-72-0 |
| EINECS | 208-423-4 |
| InChI | InChI=1/C5H4O2S/c6-5(7)4-2-1-3-8-4/h1-3H,(H,6,7)/p-1 |
| InChIKey | QERYCTSHXKAMIS-UHFFFAOYSA-N |
ALPHA-THENOIC ACID - Physico-chemical Properties
| Molecular Formula | C5H4O2S |
| Molar Mass | 128.15 |
| Density | 1.42 |
| Melting Point | 125-127°C(lit.) |
| Boling Point | 260°C(lit.) |
| Flash Point | 259-261°C |
| Water Solubility | 80 g/L (20 ºC) |
| Solubility | Acetone (Slightly), Chloroform (Slightly) |
| Vapor Presure | 0.00639mmHg at 25°C |
| Appearance | solid |
| Color | White to Off-White |
| Merck | 14,9354 |
| BRN | 110150 |
| pKa | 3.49(at 25℃) |
| Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
| Refractive Index | 1.5160 (estimate) |
| Physical and Chemical Properties | Character: colorless needle-like crystal. boiling point 129~130 ℃ soluble in hot water, ethanol, ether, slightly soluble in chloroform. |
| Use | Used as an intermediate of anti-inflammatory and analgesic drugs, organic synthesis reagent |
ALPHA-THENOIC ACID - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| RTECS | XM8330200 |
| TSCA | Yes |
| HS Code | 29349990 |
| Hazard Note | Irritant |
ALPHA-THENOIC ACID - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| application | thiophene-2-formic acid is a carboxylic acid derivative, which can be used as a pharmaceutical intermediate. |
| Preparation | Thiophene-2-formic acid can be prepared by heating with 2-acetylthiophene as raw material, iodine and Fe(NO3)3 · 9H2O as catalysts. It has been reported that it can be used to prepare a 2-acyloxy aniline derivative. |
| Use | Used as an anti-inflammatory and analgesic intermediate, organic synthetic reagent |
Last Update：2024-04-09 21:21:28
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