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ChemicalBook >> CAS DataBase List >>4-CHLOROTHIOPHENE-2-CARBOXYLIC ACID

4-CHLOROTHIOPHENE-2-CARBOXYLIC ACID

CAS No.
59614-95-8
Chemical Name:
4-CHLOROTHIOPHENE-2-CARBOXYLIC ACID
Synonyms
2-Carboxy-4-chlorothiophene;4-chlorothiene-2-carboxylic acid;4-chloro-2-thionylcarboxylic acid;4-Chloro-2-thiophenecarboxylic acid;4-CHLOROTHIOPHENE-2-CARBOXYLIC ACID;2-Thiophenecarboxylic acid, 4-chloro-
CBNumber:
CB1165438
Molecular Formula:
C5H3ClO2S
Molecular Weight:
162.59
MDL Number:
MFCD00082876
MOL File:
59614-95-8.mol
MSDS File:
SDS
Last updated:2026-05-27 23:11:31
Product description Number Pack Size Price
4-Chlorothiophene-2-carboxylic Acid TRC-C428893-500MG 500mg $268
4-Chlorothiophene-2-carboxylic Acid TRC-C428893-250MG 250mg $147
4-Chlorothiophene-2-carboxylic Acid TRC-C428893-10MG 10mg $59
4-Chlorothiophene-2- carboxylic acid JCA61495 2.5g $442.5
4-Chlorothiophene-2-carboxylic acid 95% OR40031 100mg $33
More product size

4-CHLOROTHIOPHENE-2-CARBOXYLIC ACID Properties

Melting point 131-132 °C(Solv: methanol (67-56-1))
Boiling point 298.0±20.0 °C(Predicted)
Density 1.572±0.06 g/cm3(Predicted)
storage temp. under inert gas (nitrogen or Argon) at 2–8 °C
solubility DMSO (Slightly), Methanol (Slightly)
form Solid
pka 3.50±0.10(Predicted)
color White to Off-White

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)Health Hazard (GHS08)Environment (GHS09)
GHS07,GHS08,GHS09
Signal word  Danger
Hazard statements  H312-H410-H372
Precautionary statements  P273-P280-P302+P352+P312-P362+P364-P391-P501
HS Code  2934999090

4-CHLOROTHIOPHENE-2-CARBOXYLIC ACID price More Price(68)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TRC TRC-C428893-500MG 4-Chlorothiophene-2-carboxylic Acid 59614-95-8 500mg $268 2026-06-03 Buy
TRC TRC-C428893-250MG 4-Chlorothiophene-2-carboxylic Acid 59614-95-8 250mg $147 2026-06-03 Buy
TRC TRC-C428893-10MG 4-Chlorothiophene-2-carboxylic Acid 59614-95-8 10mg $59 2026-06-03 Buy
Biosynth JCA61495 4-Chlorothiophene-2- carboxylic acid 59614-95-8 2.5g $442.5 2026-06-04 Buy
Apolloscientific OR40031 4-Chlorothiophene-2-carboxylic acid 95% 59614-95-8 100mg $33 2026-06-04 Buy
Product number Packaging Price Buy
TRC-C428893-500MG 500mg $268 Buy
TRC-C428893-250MG 250mg $147 Buy
TRC-C428893-10MG 10mg $59 Buy
JCA61495 2.5g $442.5 Buy
OR40031 100mg $33 Buy

4-CHLOROTHIOPHENE-2-CARBOXYLIC ACID Chemical Properties,Uses,Production

Uses

4-Chlorothiophene-2-carboxylic Acid is a useful research chemical compound used as a chlroinating reagent in the preparation of 5-(2-furoyl)-, 5-(2-thenoyl)-, 5-(3-furoyl)- and 5-(3-thenoyl)-1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-1-carboxylic acid derivatives.

Synthesis Reference(s)

Journal of Heterocyclic Chemistry, 13, p. 393, 1976 DOI: 10.1002/jhet.5570130241

Synthesis

Methyl-5-chlorothiophene-2-carboxylate

35475-03-7

4-CHLOROTHIOPHENE-2-CARBOXYLIC ACID

59614-95-8

General procedure for the synthesis of 4-chlorothiophene-2-carboxylic acid from methyl 5-chlorothiophene-2-carboxylate: to a solution of methyl 5-chlorothiophene-2-carboxylate (10.0 g, 61.5 mmol) in anhydrous methanol (55 mL) was slowly added concentrated sulfuric acid (5-7 mL). The reaction mixture was heated to 50 °C and maintained for 18 h for the reaction, followed by concentration under reduced pressure to remove the solvent. The concentrated residue was dissolved in dichloromethane and washed several times with saturated sodium bicarbonate solution to neutralize the acid. The organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure to afford 10.85 g of the crude product of 4-chlorothiophene-2-carboxylic acid (~100% yield), which could be used in subsequent reactions without further purification.1H NMR (400 MHz, DMSO-d6): δ 7.66 (d, 1H, J = 4.0 Hz), 7.23 (d, 1H, J = 4.4 Hz), 7.23 (d, 1H, J = 4.4 Hz) 3.81 (s, 3H).

References

[1] Patent: US2018/201610, 2018, A1. Location in patent: Paragraph 0400; 0401

4-CHLOROTHIOPHENE-2-CARBOXYLIC ACID Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 121)Suppliers
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Frapp's ChemicalNFTZ Co., Ltd.
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ATK CHEMICAL COMPANY LIMITED
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Standardpharm Co. Ltd.
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Alchem Pharmtech,Inc.
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CONIER CHEM AND PHARMA LIMITED
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career henan chemical co
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Neostar United (Changzhou) Industrial Co., Ltd.
+86-0519-85551759 marketing1@neostarunited.com China 8828 58
Chengdu Aslee Biopharmaceuticals, Inc.
28-85305008 CHINA 964 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +86-189 4982 3763 sales@tnjchem.com China 34563 58

View Lastest Price from 4-CHLOROTHIOPHENE-2-CARBOXYLIC ACID manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-CHLOROTHIOPHENE-2-CARBOXYLIC ACID pictures 2020-01-09 4-CHLOROTHIOPHENE-2-CARBOXYLIC ACID
59614-95-8
$9.80 1g ≥99% 100kg Career Henan Chemical Co
 4-Chlorothiophene-2-carboxylic acid pictures 2019-05-22 4-Chlorothiophene-2-carboxylic acid
59614-95-8
$1.00 1Kg 99.95 500KG Hebei Jimi Trading Co., Ltd.

4-CHLOROTHIOPHENE-2-CARBOXYLIC ACID Spectrum

4-CHLOROTHIOPHENE-2-CARBOXYLIC ACID 4-Chloro-2-thiophenecarboxylic acid 2-Carboxy-4-chlorothiophene 4-chloro-2-thionylcarboxylic acid 2-Thiophenecarboxylic acid, 4-chloro- 4-chlorothiene-2-carboxylic acid 59614-95-8
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