Thiophene-3,4-dicarboxylic acid
- CAS No.
- 4282-29-5
- Chemical Name:
- Thiophene-3,4-dicarboxylic acid
- Synonyms
- 100G,500G,1KG,10KG;3,4-THIOPHENEDICARBOXYLIC ACID;EA129;DK7284;3,4-Dicarboxythiophene;THIOPHENE-3,4-DICARBOXY;THIOPHENE-3,4-DICARBOXYLATE;Thiophene-3,4-DicarboxylicAci;THIOPHENE-3,4-DICARBOXYLIC ACID;3,4-Thiophenedicarboxylic acid,97%
- CBNumber:
- CB7769265
- Molecular Formula:
- C6H4O4S
- Molecular Weight:
- 172.16
- MDL Number:
- MFCD00067079
- MOL File:
- 4282-29-5.mol
- MSDS File:
- SDS
Melting point | 227-231 °C |
---|---|
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 |
solubility | soluble in Methanol |
form | Crystalline Powder |
pka | 3.36±0.20(Predicted) |
color | Yellow to beige-pinkish or light brown |
λmax | 240nm(H2O)(lit.) |
InChI | InChI=1S/C6H4O4S/c7-5(8)3-1-11-2-4(3)6(9)10/h1-2H,(H,7,8)(H,9,10) |
InChIKey | ZWWLLYJRPKYTDF-UHFFFAOYSA-N |
SMILES | C1SC=C(C(O)=O)C=1C(O)=O |
FDA UNII | J7P9TPY3Y5 |
UNSPSC Code | 12352103 |
NACRES | NA.23 |
SAFETY
Risk and Safety Statements
Symbol(GHS) | ![]() GHS07 |
---|---|
Signal word | Warning |
Hazard statements | H315-H319-H335 |
Precautionary statements | P261-P271-P280 |
Hazard Codes | Xi |
Risk Statements | 36/37/38 |
Safety Statements | 24/25 |
WGK Germany | 3 |
HazardClass | IRRITANT |
HS Code | 29349990 |
Thiophene-3,4-dicarboxylic acid price More Price(36)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich | 795577 | 3,4-Thiophenedicarboxylic acid | 4282-29-5 | 5g | $114 | 2024-03-01 | Buy |
TCI Chemical | T2280 | 3,4-Thiophenedicarboxylic Acid >98.0%(GC)(T) | 4282-29-5 | 1g | $75 | 2024-03-01 | Buy |
TRC | T368133 | Thiophene-3,4-dicarboxylicAcid | 4282-29-5 | 5g | $80 | 2021-12-16 | Buy |
SynQuest Laboratories | 6H21-1-X3 | Thiophene-3,4-dicarboxylic acid | 4282-29-5 | 5G | $104 | 2021-12-16 | Buy |
Frontier Specialty Chemicals | T1828 | Thiophene-3,4-dicarboxylicacid 98% | 4282-29-5 | 1g | $12 | 2021-12-16 | Buy |
Thiophene-3,4-dicarboxylic acid Chemical Properties,Uses,Production
Chemical Properties
yellow to beige-pinkish or light brown crystalline
Uses
Synthetic precursor for organic electronics materials.
Uses
Thiophene-3,4-dicarboxylic Acid is used in preparation of dibromo thienofuran dione.
Synthesis
Thiophene-3,4-dicarbonitrile (13.4 g, 100 mmol) and KOH (56.1 g, 1 mol) were dissolved in ethylene glycol (167 ml), and heated under stirring overnight. The solution was cooled, put into distilled water, and washed with diethyl ether. The aqueous layer was oxidized with saturated hydrochloric acid, and organic materials were extracted with ethyl acetate. The organic layer was dried over MgSO and the4, solvent was evaporated Then, recrystallization was performed in distilled water to obtain thiophene-3,4-dicarboxylic acid (15.2 g, 88percent).
Thiophene-3,4-dicarboxylic acid Preparation Products And Raw materials
Raw materials
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Preparation Products
Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
Zhengzhou Anbu Chem Co.,Ltd | +86-0371-88006763; +8615988602810 | sales@anbuchem.com | China | 2998 | 58 |
Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | sales@chemdad.com | China | 39894 | 58 |
career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29865 | 58 |
Hebei Chuanghai Biotechnology Co., Ltd | +86-15531157085 +86-15531157085 | abby@chuanghaibio.com | China | 8805 | 58 |
Hebei Mujin Biotechnology Co.,Ltd | +86 13288715578 +8613288715578 | sales@hbmojin.com | China | 12824 | 58 |
Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20255 | 58 |
airuikechemical co., ltd. | +86-18353166132 +86-18353166132 | sales02@airuikechemical.com | China | 983 | 58 |
Frapp's ChemicalNFTZ Co., Ltd. | +86 (576) 8169-6106 | sales@frappschem.com | China | 880 | 50 |
Capot Chemical Co.,Ltd. | +86-(0)57185586718 +86-13336195806 | sales@capot.com | China | 29730 | 60 |
Shanghai Daken Advanced Materials Co.,Ltd | +86-371-+86-371-66670886 | info@dakenam.com | China | 19852 | 58 |
View Lastest Price from Thiophene-3,4-dicarboxylic acid manufacturers
Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
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2025-03-14 | THIOPHENE-3,4-DICARBOXYLIC ACID
4282-29-5
|
US $0.00 / KG | 1KG | 99% | 50000KG/month | Hebei Mujin Biotechnology Co.,Ltd | |
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2025-02-19 | THIOPHENE-3,4-DICARBOXYLIC ACID
4282-29-5
|
US $10.00 / KG | 100KG | 99% | 100 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
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2024-12-24 | thiophene-3,4-dicarboxylic acid
4282-29-5
|
US $0.00-0.00 / Kg | 1Kg | 99.9% | 200tons | airuikechemical co., ltd. |
-
- THIOPHENE-3,4-DICARBOXYLIC ACID
4282-29-5
- US $0.00 / KG
- 99%
- Hebei Mujin Biotechnology Co.,Ltd
-
- THIOPHENE-3,4-DICARBOXYLIC ACID
4282-29-5
- US $10.00 / KG
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- thiophene-3,4-dicarboxylic acid
4282-29-5
- US $0.00-0.00 / Kg
- 99.9%
- airuikechemical co., ltd.
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