ChemicalBook >> CAS DataBase List >>2-Chloro-1,3-thiazole-4-carboxylic acid

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
Molecular Weight:
163.58
MDL Number:
MFCD09870033
MOL File:
5198-87-8.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:53:54

2-Chloro-1,3-thiazole-4-carboxylic acid Properties

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
UNSPSC Code 12352200
NACRES NA.21

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P305+P351+P338
Hazard Codes  Xi
WGK Germany  3
HazardClass  IRRITANT
HS Code  2934100090
Storage Class 11 - Combustible Solids
NFPA 704
0
2 0

2-Chloro-1,3-thiazole-4-carboxylic acid price More Price(48)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich JRD0389 Ethyl 2-chlorothiazole-4-carboxylate Aldrich 5198-87-8 1g $77.9 2026-04-30 Buy
Sigma-Aldrich JRD0388 2-Chlorothiazole-4-carboxylic acid Aldrich 5198-87-8 1g $114 2026-04-30 Buy
TCI Chemical C3349 2-Chlorothiazole-4-carboxylic Acid 5198-87-8 1G $104 2026-04-30 Buy
Activate Scientific AS50344 2-Chlorothiazole-4-carboxylic acid 97% 5198-87-8 1g $24 2026-06-04 Buy
Activate Scientific AS50344 2-Chlorothiazole-4-carboxylic acid 97% 5198-87-8 5g $69 2026-06-04 Buy
Product number Packaging Price Buy
JRD0389 1g $77.9 Buy
JRD0388 1g $114 Buy
C3349 1G $104 Buy
AS50344 1g $24 Buy
AS50344 5g $69 Buy

2-Chloro-1,3-thiazole-4-carboxylic acid Chemical Properties,Uses,Production

Synthesis

ETHYL 2-CHLORO-1,3-THIAZOLE-4-CARBOXYLATE

41731-52-6

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

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

Global( 143)Suppliers
Supplier Tel Email Country ProdList Advantage
Yancheng Schiemann Biological Technology Co.,Ltd 0515-88280676; 18921872653 sales@ximanbio.com China 1524 56
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
PharmaBlock Sciences (Nanjing),Inc. 025-86918202 4000255188 sales@pharmablock.com China 5000 55
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
ChemFuture PharmaTech (Jiangsu) Ltd 5108538618 suger.wang@chemfuture.com China 832 65
Ark Pharm, Inc. 847-367-3680 sales@arkpharminc.com United States 1669 56
Beijing Ouhe Technology Co., Ltd 13552068683 13522913783 2355560935@qq.com China 11777 60
Pure Chemistry Scientific Inc. 001-857-928-2050 or 1-888-588-9418 sales@chemreagents.com United States 10174 62
Accela ChemBio Co.,Ltd. 021-50795510 4000665055 marketing@accelachem.com China 10972 64
ZEROSCHEM.CO.,LTD. 10-61256048 13810278579; sales@zeroschem.com China 1399 59

View Lastest Price from 2-Chloro-1,3-thiazole-4-carboxylic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2-CHLORO-1,3-THIAZOLE-4-CARBOXYLIC ACID pictures 2020-01-13 2-CHLORO-1,3-THIAZOLE-4-CARBOXYLIC ACID
5198-87-8
$1.00 1g 99% 1000KGS Career Henan Chemical Co

2-Chloro-1,3-thiazole-4-carboxylic acid Spectrum

2-Chloro-4-thiazolecarboxylic acid 4-Carboxy-2-chloro-1,3-thiazole 4-Thiazolecarboxylic acid, 2-chloro- 2-Chlorothiazole-4-Carboxylic Acid(WXC02298) 2-Chloro-1,3-thiazole-4-carboxylic acid 5198-87-8 Organohalides Thiazole