| Product Name: | 3-Thienylmalonic acid (3-TMA) |
| CAS No.: | 21080-92-2 |
| Molecular formula: | C7H6O4S |
| Molecular weight: | 186.19 |
| Structural formula: |  |
| Density | 1.574g/cm3 at 25 °C |
| Melting point | 139-142 ° C |
| Boiling point | 396.8°C at 760 mmHg |
| Appearance | White or almost white powder in water, ethyl acetate soluble in ethanol, soluble, long home discoloration and deterioration. |
| Usage | ticarcillin intermediates. |
| Quality standards |
| Test items | Test indicators |
|---|---|
| Exterior | White or almost white powder |
| Content | Titration: ≥98.0%; HPLC: ≥98.5% |
| Main impurities | ≤1.0% |
| Moisture | ≤1.0% |
| Residue on ignition | ≤0.50% |
| Heavy metals (as Pb) | ≤0.002% |
| Arsenic (as As) | ≤0.0002% |
