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Thiophene-3,4-dicarboxylic acid

Thiophene-3,4-dicarboxylic acid structure

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;THIOPHENE-3,4-DICARBOXYLIC ACID

CBNumber:: CB7769265

Molecular Formula:: C6H4O4S

Molecular Weight:: 172.16

MDL Number:: MFCD00067079

MOL File:: 4282-29-5.mol

MSDS File:: SDS

Last updated:2024-08-07 10:04:38

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Thiophene-3,4-dicarboxylic acid Properties

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

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

Product number	Packaging	Price	Buy
795577	5g	$114	Buy
T2280	1g	$75	Buy
T368133	5g	$80	Buy
6H21-1-X3	5G	$104	Buy
T1828	1g	$12	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 synthesis

Synthesis of Thiophene-3,4-dicarboxylic acid from 3,4-DICYANOTHIOPHENE,

Thiophene-3,4-dicarboxylic acid Preparation Products And Raw materials

Raw materials

Copper(I) Cyanide N,N-Dimethylformamide 3,4-Dibromothiophene Ferric chloride 2-Butenedioic acid, 2,3-dimethyl-, dimethyl ester, (2Z)-

diethyl 2-(diethoxymethyl)butanedioate 2-(Diethoxymethyl)-3-formylbutanedioic acid diethyl ester 3,4-Diiodothiophene 3,4-Thiophenedicarboxylic acid, diMethyl ester DIETHYL FORMYLSUCCINATE

2,3-Dimethylmaleic anhydride 3,4-DICYANOTHIOPHENE, 3,4-Thiophenedicarboxylic acid, diethyl ester 3,4-Thiophenedicarboxylic acid, 2,5-dihydro-, dimethyl ester Carbon dioxide

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Preparation Products

1,3-Dibromo-5-octyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione 4-BROMOTHIOPHENE-3-CARBOXYLIC ACID

Thiophene-3,4-dicarboxylic acid Suppliers

Global( 240)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Zhengzhou Anbu Chem Co.,Ltd	+86-0371-88006763; +8615988602810	sales@anbuchem.com	China	3000	58
Chongqing Chemdad Co., Ltd	+86-023-6139-8061 +86-86-13650506873	sales@chemdad.com	China	39916	58
Hebei Mojin Biotechnology Co., Ltd	+86 13288715578 +8613288715578	sales@hbmojin.com	China	12446	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	20293	58
airuikechemical co., ltd.	+undefined86-15315557071	sales02@sdzhonghuimaterial.com	China	983	58
Frapp's ChemicalNFTZ Co., Ltd.	+86 (576) 8169-6106	sales@frappschem.com	China	885	50
Capot Chemical Co.,Ltd.	571-85586718 +8613336195806	sales@capotchem.com	China	29798	60
Shanghai Daken Advanced Materials Co.,Ltd	+86-371-66670886	info@dakenam.com	China	18629	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21667	55
Hangzhou FandaChem Co.,Ltd.	008657128800458; +8615858145714	fandachem@gmail.com	China	9354	55

Supplier	Advantage
Zhengzhou Anbu Chem Co.,Ltd	58
Chongqing Chemdad Co., Ltd	58
Hebei Mojin Biotechnology Co., Ltd	58
Henan Fengda Chemical Co., Ltd	58
airuikechemical co., ltd.	58
Frapp's ChemicalNFTZ Co., Ltd.	50
Capot Chemical Co.,Ltd.	60
Shanghai Daken Advanced Materials Co.,Ltd	58
Henan Tianfu Chemical Co.,Ltd.	55
Hangzhou FandaChem Co.,Ltd.	55

View Lastest Price from Thiophene-3,4-dicarboxylic acid manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2024-08-15	THIOPHENE-3,4-DICARBOXYLIC ACID 4282-29-5	US $0.00 / KG	0.1KG	98%	1000KGS	Zhengzhou Anbu Chem Co.,Ltd
2024-08-15	THIOPHENE-3,4-DICARBOXYLIC ACID 4282-29-5	US $0.00 / KG	0.1KG	99%	1000KGS	Zhengzhou Anbu Chem Co.,Ltd
2024-04-09	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
98%
Zhengzhou Anbu Chem Co.,Ltd

THIOPHENE-3,4-DICARBOXYLIC ACID
4282-29-5
US $0.00 / KG
99%
Zhengzhou Anbu Chem 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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THIOPHENE-3,4-DICARBOXYLIC ACID 3,4-Thiophenedicarboxylic acid,97% 3,4-Dicarboxythiophene 3,4-Thiophenedicarboxylic acid ,98% THIOPHENE-3,4-DICARBOXYLATE THIOPHENE-3,4-DICARBOXY Thiophene-3,4-DicarboxylicAci THIOPHENE-3,4-DICARBOXYLIC ACID ISO 9001：2015 REACH EA129 THIOPHENE-3,4-DICARBOXYLIC ACID 4282-29-5 3,4-THIOPHENEDICARBOXYLIC ACID 100G,500G,1KG,10KG DK7284 3,4-Thiophenedicarboxylic acid (6CI, 7CI, 8CI, 9CI, ACI) THIOPHENE-3,4-DICARBOXYLIC ACID 4282-29-5 Building Blocks Carboxy Thiophene API intermediates Acids and Derivatives Heterocycles