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Thiophene-3,4-dicarboxylic acid

Product Name
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;THIOPHENE-3,4-DICARBOXYLIC ACID
CBNumber
CB7769265
Molecular Formula
C6H4O4S
Formula Weight
172.16
MOL File
4282-29-5.mol
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Thiophene-3,4-dicarboxylic acid Property

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
pka
3.36±0.20(Predicted)
form 
Crystalline Powder
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
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
24/25
WGK Germany 
3
HazardClass 
IRRITANT
HS Code 
29349990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
795577
Product name
3,4-Thiophenedicarboxylic acid
Packaging
5g
Price
$114
Updated
2024/03/01
TCI Chemical
Product number
T2280
Product name
3,4-Thiophenedicarboxylic Acid
Purity
>98.0%(GC)(T)
Packaging
1g
Price
$75
Updated
2024/03/01
TRC
Product number
T368133
Product name
Thiophene-3,4-dicarboxylicAcid
Packaging
5g
Price
$80
Updated
2021/12/16
SynQuest Laboratories
Product number
6H21-1-X3
Product name
Thiophene-3,4-dicarboxylic acid
Packaging
5G
Price
$104
Updated
2021/12/16
Frontier Specialty Chemicals
Product number
T1828
Product name
Thiophene-3,4-dicarboxylicacid
Purity
98%
Packaging
1g
Price
$12
Updated
2021/12/16
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Thiophene-3,4-dicarboxylic acid Chemical Properties,Usage,Production

Chemical Properties

yellow to beige-pinkish or light brown crystalline

Uses

Thiophene-3,4-dicarboxylic Acid is used in preparation of dibromo thienofuran dione.

Uses

Synthetic precursor for organic electronics materials.

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

Copper(I) Cyanide N,N-Dimethylformamide 3,4-Dibromothiophene Ferric chloride

Preparation Products

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Thiophene-3,4-dicarboxylic acid Suppliers

Belgium 1 Canada 1 China 203 Germany 1 India 5 Japan 2 Switzerland 1 United Kingdom 6 United States 21 Global 241
Changzhou Ucheml Medicine Co., Ltd.
Tel
0519-86058959
Fax
0519-85286229
Email
sales@uchemi.cn
Country
China
ProdList
220
Advantage
50
Zhengzhou AnMusi Chemical Products Co., Ltd.
Tel
0371-55289822 18737195735
Fax
QQ：2370407954
Email
2370407954@qq.com
Country
China
ProdList
1998
Advantage
55
Chongqing Xingcan Pharmaceutical Technology Co., Ltd.
Tel
15523000485
Email
xingcanyaoye@sina.com
Country
China
ProdList
1686
Advantage
58
Hunan Caiya Biological Technology Co., Ltd
Tel
15580017485
Email
2036676503@qq.com
Country
China
ProdList
91
Advantage
58
Henan Kehong Biological Technology Co. LTD
Tel
0371-55969461； 0371-86658258 17722895060
Fax
QQ：3311217266
Email
info@kehobio.com
Country
China
ProdList
2408
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44688
Advantage
61
Wuhan Chemwish Technology Co., Ltd
Tel
86-027-67849912
Fax
86-027-87531808
Email
sales@chemwish.com
Country
China
ProdList
35896
Advantage
56
Capot Chemical Co., Ltd
Tel
+86 (0) 571 85 58 67 18
Fax
0086-571-85864795
Email
sales@capotchem.com
Country
China
ProdList
18207
Advantage
66
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View Lastest Price from Thiophene-3,4-dicarboxylic acid manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
THIOPHENE-3,4-DICARBOXYLIC ACID 4282-29-5
Price
US $10.00/KG
Min. Order
100KG
Purity
99%
Supply Ability
100 mt
Release date
2024-11-22
airuikechemical co., ltd.
Product
thiophene-3,4-dicarboxylic acid 4282-29-5
Price
US $0.00-0.00/Kg
Min. Order
1Kg
Purity
99.9%
Supply Ability
200tons
Release date
2024-04-09
Career Henan Chemical Co
Product
THIOPHENE-3,4-DICARBOXYLIC ACID 4282-29-5
Price
US $25.00/KG
Min. Order
5KG
Purity
98%
Supply Ability
500kg
Release date
2024-09-23

4282-29-5, Thiophene-3,4-dicarboxylic acidRelated Search:

THIOPHENE-2-CARBOXALDOXIME 3,4-DIHYDROXY-THIOPHENE-2,5-DICARBOXYLIC ACID DIMETHYL ESTER THIOPHENE-3,4-DICARBOXYLIC ACID 2,5-Thiophenedicarboxylic acid 5-AMINO-3-METHYL-THIOPHENE-2,4-DICARBOXYLIC ACID DIETHYL ESTER 3,4-DIMETHYLTHIENO[2,3-B]THIOPHENE-2,5-DICARBOXYLIC ACID 2,5-Diaminothiophene-3,4-dicarboxylic acid diethyl ester 3,4-DIHYDROXY-THIOPHENE-2,5-DICARBOXYLIC ACID DIETHYL ESTER 5-AMINO-3-METHYL-THIOPHENE-2,4-DICARBOXYLIC ACID-4-ETHYL ESTER 2-METHYL ESTER 5-(2-CHLORO-ACETYLAMINO)-3-METHYL-THIOPHENE-2,4-DICARBOXYLIC ACID DIMETHYL ESTER 3-METHYL-5-SULFAMOYL-THIOPHENE-2,4-DICARBOXYLIC ACID DIETHYL ESTER 5-AMINO-3-METHYL-THIOPHENE-2,4-DICARBOXYLIC ACID 2-TERT-BUTYL ESTER 4-ETHYL ESTER 5-(2-CHLORO-ACETYLAMINO)-3-METHYL-THIOPHENE-2,4-DICARBOXYLIC ACID 2-ALLYL ESTER 4-ETHYL ESTER 5-AMINO-3-METHYL-THIOPHENE-2,4-DICARBOXYLIC ACID 2-ETHYL ESTER 4-METHYL ESTER 1,2,2a,7b-Tetrahydro-1,2-dimethylbenzo[b]cyclobuta[d]thiophene-1,2-dicarboxylic acid Δ2,2'(3H,3'H)-Bibenzo[b]thiophene-7,7'-dicarboxylic acid dibutyl ester Δ2,2'(3H,3'H)-Bibenzo[b]thiophene-7,7'-dicarboxylic acid bis[2-[2-[2-[2-(hexadecyloxy)ethoxy]ethoxy]ethoxy]ethyl] ester 2-AMINO-5-METHYL-THIOPHENE-3,4-DICARBOXYLIC ACID 4-ETHYL ESTER 3-METHYL ESTER

  • 3,4-THIOPHENEDICARBOXYLIC ACID
  • THIOPHENE-3,4-DICARBOXYLIC ACID
  • 3,4-Thiophenedicarboxylic acid,97%
  • 3,4-Dicarboxythiophene
  • 3,4-Thiophenedicarboxylic acid ,98%
  • THIOPHENE-3,4-DICARBOXYLATE
  • 100G,500G,1KG,10KG
  • 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
  • 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