2,5-Thiophenedicarboxylic acid
- CAS NO.：4282-31-9
- Empirical Formula: C6H4O4S
- Molecular Weight: 172.16
- MDL number: MFCD00016896
- EINECS: 224-284-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-07-30 16:49:16
What is 2,5-Thiophenedicarboxylic acid?
Chemical properties
white to light yellow crystal powder
The Uses of 2,5-Thiophenedicarboxylic acid
2,5-Thiophenedicarboxylic acid may be used as a thiophene based linker in the preparation of magnesium coordination networks. It may also be used as a precursor in the synthesis of 2,5-bis-benzoxazoyl-thiophene (EBF).
It may be used in the synthesis of the following:
- new cobalt(II) thiophenedicarboxylate coordination polymer
- novel mesogenic thiophene based supramolecular liquid crystals
- two novel coordination polymers with the formula {[Ln2(2,5-tdc)3(dmso)2]H2O}n (Ln = Tb(III) and Dy(III)), (2,5-tdc2 = 2,5-thiophenedicarboxylate and dmso = dimethylsulfoxide)
Synthesis Reference(s)
Journal of the American Chemical Society, 72, p. 2109, 1950 DOI: 10.1021/ja01161a065
General Description
2,5-Thiophenedicarboxylic acid (2,5-TDCA, H2TDC) is an important building block in the preparation of fluorescent brightening agent, fungicides and anti-cancer drug. It has been generated by chlorination of adipic acid using thionyl chloride. Due to its diverse coordination modes, it is an excellent choice as an aromatic linker to generate coordination networks. The enthalpies of combustion and sublimation of 2,5-thiophenedicarboxylic acid have been evaluated by rotary-bomb combustion calorimetry.
Properties of 2,5-Thiophenedicarboxylic acid
| Melting point: | >300 °C (lit.) |
| Boiling point: | 272.46°C (rough estimate) |
| Density | 1.473 (estimate) |
| refractive index | 1.5500 (estimate) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| form | solid |
| pka | 2.76±0.10(Predicted) |
| color | White to Light yellow |
| Water Solubility | Very soluble in water. |
| BRN | 136781 |
| CAS DataBase Reference | 4282-31-9(CAS DataBase Reference) |
| EPA Substance Registry System | 2,5-Thiophenedicarboxylic acid (4282-31-9) |
Safety information for 2,5-Thiophenedicarboxylic acid
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 2,5-Thiophenedicarboxylic acid
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