ChemicalBook > CAS DataBase List > Thiophene-3,4-dicarboxylic acid

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
More
Less

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
More
Less

Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
24/25
WGK Germany 
3
HazardClass 
IRRITANT
HS Code 
29349990
More
Less

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.

More
Less

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
More
Less

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

More
Less

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
Accela ChemBio Inc.
Tel
+1(858) 699-3322
Fax
+1(858) 876-1948
Email
marketing@accelachem.com
Country
United States
ProdList
6024
Advantage
65
Alfa Chemistry
Tel
1-516-6625404
Fax
1-516-927-0118
Email
support@alfa-chemistry.com
Country
United States
ProdList
9171
Advantage
60
Alfa Chemistry
Tel
Fax
1-516-927-0118
Email
Info@alfa-chemistry.com
Country
United States
ProdList
24072
Advantage
58
Accela ChemBio Inc.
Tel
+1-858-6993322
Fax
(+1)-858-876-1948
Email
info@accelachem.com
Country
United States
ProdList
17453
Advantage
58
Alchem Pharmtech,Inc.
Tel
8485655694
Email
sales@alchempharmtech.com
Country
United States
ProdList
63687
Advantage
58
Protheragen-ING
Tel
+16313385890
Email
info@protheragen-ing.com
Country
United States
ProdList
3868
Advantage
58
Aladdin Scientific
Tel
+1-+1(833)-552-7181
Email
sales@aladdinsci.com
Country
United States
ProdList
57505
Advantage
58
Eastar Chemical Corp
Tel
+1-8008982436 +86-13998381317
Email
manannan@chinaeastar.com
Country
United States
ProdList
376
Advantage
58
Synthonix Inc
Tel
--
Fax
--
Email
info@synthonix.com
Country
United States
ProdList
6872
Advantage
58
Oakwood Products, Inc.
Tel
--
Fax
--
Email
sales@oakwoodchemical.com
Country
United States
ProdList
6193
Advantage
74
Combi-Blocks Inc.
Tel
--
Fax
--
Email
sales@combi-blocks.com
Country
United States
ProdList
6618
Advantage
69
SynQuest Laboratories, Inc.
Tel
--
Fax
--
Email
info@synquestlabs.com
Country
United States
ProdList
6871
Advantage
62
Riedel-de Haen AG
Tel
--
Fax
--
Country
United States
ProdList
6773
Advantage
87
TCI America
Tel
--
Fax
--
Email
sales@tciamerica.com
Country
United States
ProdList
6909
Advantage
75
Frontier Scientific, Inc.
Tel
--
Fax
--
Email
sales@frontiersci.com
Country
United States
ProdList
6222
Advantage
86
Matrix Scientific
Tel
--
Fax
--
Email
sales@matrixscientific.com
Country
United States
ProdList
6632
Advantage
80
Sphinx Scientific Laboratory, LLC
Tel
--
Fax
--
Email
sales@sphinxscientificlab.com
Country
United States
ProdList
3343
Advantage
50
3B Scientific Corporation
Tel
--
Fax
--
Email
sales@3bsc.com
Country
United States
ProdList
6962
Advantage
56
INDOFINE Chemical Company, Inc.
Tel
--
Fax
--
Email
chemical@indofinechemical.com
Country
United States
ProdList
6176
Advantage
69
3B Scientific Corporation
Tel
--
Fax
--
Email
sales@3bsc.com
Country
United States
ProdList
6718
Advantage
47
APAC Pharmaceutical, LLC
Tel
--
Fax
--
Email
sales@apacpharma.com
Country
United States
ProdList
6322
Advantage
38
More
Less

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