ISOXAZOLE-5-CARBOXYLIC ACID

Product Name: ISOXAZOLE-5-CARBOXYLIC ACID
CAS No.: 21169-71-1
Chemical Name: ISOXAZOLE-5-CARBOXYLIC ACID
Synonyms: AKOS PAO-1371;BUTTPARK 27\08-41;5-Carboxyisoxazole;TIMTEC-BB SBB004319;5-Carboxy-1,2-oxazole;Isoxazol-5-carbonsaeure;Isoxazole 5-formic acid;Isozole-5-carboxylic acid;5-Isoxazolecarboxylic acid;Isoxazol-5-carboxylic acid
CBNumber: CB1758728
Molecular Formula: C4H3NO3
Formula Weight: 113.07
MOL File: 21169-71-1.mol

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ISOXAZOLE-5-CARBOXYLIC ACID Property

Melting point:: 144-148 °C(lit.)
Boiling point:: 211.74°C (rough estimate)
Density: 1.5808 (rough estimate)
refractive index: 1.4543 (estimate)
storage temp.: Keep in dark place,Sealed in dry,Room Temperature
form: Powder
pka: 2.29±0.10(Predicted)
color: Slightly yellow
Water Solubility: Slightly soluble in water.
Sensitive: Moisture Sensitive
InChI: InChI=1S/C4H3NO3/c6-4(7)3-1-2-5-8-3/h1-2H,(H,6,7)
InChIKey: MIIQJAUWHSUTIT-UHFFFAOYSA-N
SMILES: O1C(C(O)=O)=CC=N1
CAS DataBase Reference: 21169-71-1(CAS DataBase Reference)

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 24/25-25-24-36-26
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.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

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

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 636258
Product name: Isoxazole-5-carboxylic acid
Purity: 97%
Packaging: 5g
Price: $213
Updated: 2023/06/20

TCI Chemical

Product number: I1227
Product name: Isoxazole-5-carboxylic Acid
Purity: min. 97.0 %
Packaging: 1G
Price: $46
Updated: 2025/07/31

TCI Chemical

Product number: I1227
Product name: Isoxazole-5-carboxylic Acid
Purity: min. 97.0 %
Packaging: 5G
Price: $138
Updated: 2025/07/31

TRC

Product number: I918110
Product name: 5-IsoxazolecarboxylicAcid
Packaging: 25g
Price: $825
Updated: 2021/12/16

Matrix Scientific

Product number: 010279
Product name: Isoxazole-5-carboxylic acid
Purity: 95+%
Packaging: 1g
Price: $17
Updated: 2021/12/16

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ISOXAZOLE-5-CARBOXYLIC ACID Chemical Properties,Usage,Production

Chemical Properties

slightly yellow powder

Uses

Reaction conditions were found to allow the exclusive formation of isoxazole-5-carboxylic acid derivatives by conjugate addition, in acidic medium, of hydroxylamine to β-alkoxyvinyl trichloromethyl ketone in synthesis and reactivity of isoxazoles. Isoxazole-5-carboxylic acid participates in the Synthesis and evaluation of acylguanidine FXa inhibitors. 1, 1, 1-trichloro-4-methoxy-3-penten-2-one postulated in the preparation of isoxazole-5-carboxylic acid from trichloroacetyl chloride, ethyl vinyl ether and hydroxylamine is developed in a fully saturated nitrogen atom theerefore there is no possibility of conjugation with 4- substituents.

General Description

Isoxazole-5-carboxylic acid can be obtained via dehydration of 5-trichloromethylisoxazole.

ISOXAZOLE-5-CARBOXYLIC ACID Preparation Products And Raw materials

Raw materials

Hexane Trifluoroacetic anhydride Diethyl ether Lithium Aluminum Hydride Dichloromethane Methanol Hydroxylamine hydrochloride Pyridine Thionyl chloride Sulfuric acid Trichloroacetic acid

Preparation Products

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ISOXAZOLE-5-CARBOXYLIC ACID Suppliers

Belgium 2 Canada 1 China 130 Europe 1 France 2 Germany 6 India 10 Russia 1 Slovakia 1 Switzerland 2 United Kingdom 16 United States 31 Global 203

Shanghai Qianhe Biological Technology Co., Ltd.

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J & K SCIENTIFIC LTD.

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Jia Xing Isenchem Co.,Ltd

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View Lastest Price from ISOXAZOLE-5-CARBOXYLIC ACID manufacturers

Career Henan Chemical Co

Product: ISOXAZOLE-5-CARBOXYLIC ACID 21169-71-1
Price: US $8.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 10tons
Release date: 2018-12-23

21169-71-1, ISOXAZOLE-5-CARBOXYLIC ACIDRelated Search:

isoxazol-5-amine ISOXAZOL-3-YLMETHYL-METHYL-AMINE ISOXAZOLE-5-CARBONYL CHLORIDE C-ISOXAZOL-3-YL-METHYLAMINE METHYL ISOXAZOLE-5-CARBOXYLATE ISOXAZOLIDIN-3-ONE 4-Aminoisoxazole Methyl isonicotinate Ethyl isonicotinate 2-[[(3aS,4R,6S,6aR)-4-[7-[[(1R,2S)-2-(3,4-Difluorophenyl)cyclopropyl]amino]-5-(propylthio)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-3-yl]-2,2-dimethyl-tetrahydro-3aH-cyclopenta[d][1,3]dioxol-6-yl]oxy]ethanol Isoxazol-4-ylmethanamine oxalate ISOXAFLUTOLE ISOXAZOLO[5,4-B]PYRIDIN-3-YLAMINE 5-Isoxazolecarboxylicacid,ethylester(9CI) 1,2-oxazol-3-ylMethanaMine hydrochloride 3-AMINOISOXAZOLO[4,5-B]PYRAZINE Isoxazole-4-boronicacid C-ISOXAZOL-5-YL-METHYLAMINE HYDROCHLORIDE

TIMTEC-BB SBB004319

AKOS PAO-1371

ISOXAZOLE-5-CARBOXYLIC ACID

BUTTPARK 27\08-41

5-Isoxazolecarboxylic acid

Isoxazole-5-carboxylic acid 98%

Isoxazole-5-carboxylic acid ,98%

5-Carboxyisoxazole, 1,2-Oxazole-5-carboxylic acid, 5-Carboxy-1,2-oxazole

1,2-oxazole-5-carboxylic acid

5-Carboxy-1,2-oxazole

5-Carboxyisoxazole

5-isoxazolylcarboxylic acid

Isoxazol-5-carbonsaeure

Isozole-5-carboxylic acid

Isoxazole 5-formic acid

5-Isoxazolecarboxylic acid (7CI, 8CI, 9CI, ACI)

Isoxazol-5-carboxylic acid

21169-71-1

21169-71-7

C4H3NO

ARYL ACID

Building Blocks

Isoxazoles

Heterocyclic Building Blocks

carboxylic acid

Oxazole&Isoxazole

Building Blocks

Heterocyclic Building Blocks

Isoxazoles