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2-CHLORO-1,3-THIAZOLE-4-CARBOXYLIC ACID

Product Name
2-CHLORO-1,3-THIAZOLE-4-CARBOXYLIC ACID
CAS No.
5198-87-8
Chemical Name
2-CHLORO-1,3-THIAZOLE-4-CARBOXYLIC ACID
Synonyms
4-Carboxy-2-chloro-1,3-thiazole;2-Chloro-4-thiazolecarboxylic acid;4-Thiazolecarboxylic acid, 2-chloro-;2-CHLORO-1,3-THIAZOLE-4-CARBOXYLIC ACID;2-Chlorothiazole-4-Carboxylic Acid(WXC02298)
CBNumber
CB61516890
Molecular Formula
C4H2ClNO2S
Formula Weight
163.58
MOL File
5198-87-8.mol
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2-CHLORO-1,3-THIAZOLE-4-CARBOXYLIC ACID Property

Melting point:
220 °C
Boiling point:
370.2±34.0 °C(Predicted)
Density 
1.693±0.06 g/cm3(Predicted)
storage temp. 
under inert gas (nitrogen or Argon) at 2-8°C
form 
Crystalline Powder
pka
3.15±0.10(Predicted)
color 
White to yellow
InChI
InChI=1S/C4H2ClNO2S/c5-4-6-2(1-9-4)3(7)8/h1H,(H,7,8)
InChIKey
UVYJJJQMZPCYKY-UHFFFAOYSA-N
SMILES
S1C=C(C(O)=O)N=C1Cl
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Safety

Hazard Codes 
Xi
WGK Germany 
3
HazardClass 
IRRITANT
HS Code 
2934100090
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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.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
JRD0389
Product name
Ethyl 2-chlorothiazole-4-carboxylate
Purity
Aldrich
Packaging
1g
Price
$73.1
Updated
2025/07/31
Sigma-Aldrich
Product number
JRD0388
Product name
2-Chlorothiazole-4-carboxylic acid
Purity
Aldrich
Packaging
1g
Price
$107
Updated
2025/07/31
TCI Chemical
Product number
C3349
Product name
2-Chlorothiazole-4-carboxylic Acid
Packaging
1G
Price
$105
Updated
2025/07/31
TRC
Product number
C411463
Product name
2-Chloro-1,3-thiazole-4-carboxylicacid
Packaging
250mg
Price
$55
Updated
2021/12/16
SynQuest Laboratories
Product number
8H21-5-X3
Product name
2-Chloro-1,3-thiazole-4-carboxylic acid
Packaging
1g
Price
$56
Updated
2021/12/16
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2-CHLORO-1,3-THIAZOLE-4-CARBOXYLIC ACID Chemical Properties,Usage,Production

Synthesis

41731-52-6

5198-87-8

The general procedure for the synthesis of 2-chloro-1,3-thiazole-4-carboxylic acid from ethyl 2-chlorothiazole-4-carboxylate was as follows: 14.0 g (73.1 mmol) of ethyl 2-chlorothiazole-4-carboxylate was slowly added to 11.0 g (0.17 mol, 85% purity) of potassium hydroxide in a solution of ethanol/water (1:3, 200 mL), keeping the reaction temperature at 0 °C. The reaction mixture was stirred at room temperature for 16 hours before being diluted with water and washed twice with ether. Subsequently, the aqueous layer was acidified to pH=5.5 with concentrated hydrochloric acid and stirring was continued at room temperature for three days. The precipitate formed was collected by filtration and dried under vacuum at 40°C to give 7.0 g (56% yield, 95% purity) of 2-chloro-1,3-thiazole-4-carboxylic acid as a brown solid product.

References

[1] Patent: WO2011/3796, 2011, A1. Location in patent: Page/Page column 126; 127
[2] Helvetica Chimica Acta, 1944, vol. 27, p. 1432,1433
[3] Patent: US5498630, 1996, A
[4] Patent: WO2007/146066, 2007, A2. Location in patent: Page/Page column 152

2-CHLORO-1,3-THIAZOLE-4-CARBOXYLIC ACID Preparation Products And Raw materials

Raw materials

Preparation Products

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2-CHLORO-1,3-THIAZOLE-4-CARBOXYLIC ACID Suppliers

TCI Europe
Tel
320-37350700
Fax
+32 (0)37350701
Email
sales@tcieurope.eu
Country
Europe
ProdList
23671
Advantage
75
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View Lastest Price from 2-CHLORO-1,3-THIAZOLE-4-CARBOXYLIC ACID manufacturers

Career Henan Chemical Co
Product
2-CHLORO-1,3-THIAZOLE-4-CARBOXYLIC ACID 5198-87-8
Price
US $1.00/g
Min. Order
1g
Purity
99%
Supply Ability
1000KGS
Release date
2020-01-10