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Ethyl 3-methylisoxazole-4-carboxylate

Ethyl 3-methylisoxazole-4-carboxylate Structure
Ethyl 3-methylisoxazole-4-carboxylate structure
CAS No.
20328-15-8
Chemical Name:
Ethyl 3-methylisoxazole-4-carboxylate
Synonyms
Leflunomide Impurity 9;Ethyl 3-methylisoxazole-4-carboxylate;ETHYL 3-METHYL-1,2-OXAZOLE-4-CARBOXYLATE;3-Methylisoxazole-4-carboxylic acid ethyl ester;3-methyl-4-isoxazolecarboxylic acid ethyl ester;4-Isoxazolecarboxylic acid, 3-methyl-, ethyl ester;4-Isoxazolecarboxylicacid,3-methyl-,ethylester(8CI,9CI);Ethyl 3-methylisoxazole-4-carboxylateQ: What is Ethyl 3-methylisoxazole-4-carboxylate Q: What is the CAS Number of Ethyl 3-methylisoxazole-4-carboxylate Q: What is the storage condition of Ethyl 3-methylisoxazole-4-carboxylate Q: What are the applications of Ethyl 3-methylisoxazole-4-carboxylate
CBNumber:
CB9437522
Molecular Formula:
C7H9NO3
Molecular Weight:
155.15
MDL Number:
MFCD01075736
MOL File:
20328-15-8.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:56:28
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Ethyl 3-methylisoxazole-4-carboxylate Properties

Boiling point 64°C 0,6mm
Density 1.139±0.06 g/cm3(Predicted)
refractive index 1.4590
Flash point 64°C/0.6mm
storage temp. 2-8°C
pka -3.24±0.50(Predicted)
Appearance Light yellow to yellow Liquid
BRN 1072756

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P233-P260-P261-P264-P270-P271-P280-P301+P312-P302+P352-P304-P304+P340-P305+P351+P338-P312-P321-P330-P332+P313-P337+P313-P340-P362-P403-P403+P233-P405-P501
Safety Statements  24/25
HS Code  2934999090
NFPA 704
1
0 0

Ethyl 3-methylisoxazole-4-carboxylate price More Price(25)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Usbiological 426454 3-Methylisoxazole-4-carboxylic Acid Ethyl Ester 20328-15-8 250mg $319 2026-06-03 Buy
Usbiological 426454 3-Methylisoxazole-4-carboxylic Acid Ethyl Ester 20328-15-8 500mg $453 2026-06-03 Buy
Usbiological 275810 Ethyl 3-methylisoxazole-4-carboxylate Asreported 20328-15-8 1g $383 2026-06-03 Buy
Apolloscientific OR926281 Ethyl 3-methylisoxazole-4-carboxylate 95% 20328-15-8 1g $211 2026-06-04 Buy
Apolloscientific OR926281 Ethyl 3-methylisoxazole-4-carboxylate 95% 20328-15-8 5g $626 2026-06-04 Buy
Product number Packaging Price Buy
426454 250mg $319 Buy
426454 500mg $453 Buy
275810 1g $383 Buy
OR926281 1g $211 Buy
OR926281 5g $626 Buy

Ethyl 3-methylisoxazole-4-carboxylate Chemical Properties, Uses, Production

Uses

3-Methylisoxazole-4-carboxylic Acid Ethyl Ester is an impurity in Leflunomide (L322750); an immunosuppressive that inhibits T and B cell proliferation.

Synthesis Reference(s)

Synthesis, p. 792, 1985 DOI: 10.1055/s-1985-31353

Ethyl 3-methylisoxazole-4-carboxylate Preparation Products And Raw materials

Raw materials

Preparation Products

3-Methyl-4-isoxazolecarboxylic acid

Ethyl 3-methylisoxazole-4-carboxylate Suppliers

Global Suppliers ( 58)
Supplier Tel Email Country ProdList Advantage
JW & Y Pharmlab Co., Ltd. 021-64340559 xinyu_shi@jwypharmlab.com.cn China 11999 58
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Chemsky（shanghai）International Co.,Ltd. 021-50135380 shchemsky@sina.com China 32273 50
Shanghai Carlow Chemicals Co., Ltd. 21-33526724 18930996265 info@carlowchem.com China 1996 58
ShangHai AmK Pharmaceutical Technology Co., Ltd. 微信 18019252918 18019252918 sale@amkchem.com China 14982 55
BOC Sciences 16314854226 info@bocsci.com United States 9909 65
Shanghai YuanYe Biotechnology Co., Ltd. 15026964105 2881489226@qq.com China 89667 60
BePharm Ltd 400-685-9117 market@bepharm.com China 15081 60
Supplier Advantage
JW & Y Pharmlab Co., Ltd. 58
Meryer (Shanghai) Chemical Technology Co., Ltd. 62
Alfa Aesar 84
Energy Chemical 61
Chemsky（shanghai）International Co.,Ltd. 50
Shanghai Carlow Chemicals Co., Ltd. 58
ShangHai AmK Pharmaceutical Technology Co., Ltd. 55
BOC Sciences 65
Shanghai YuanYe Biotechnology Co., Ltd. 60
BePharm Ltd 60

Ethyl 3-methylisoxazole-4-carboxylate Spectrum

ETHYL 3-METHYLISOXAZOLE-4-CARBOXYLATE(20328-15-8)1HNMR

20328-15-8 (Ethyl 3-methylisoxazole-4-carboxylate) Related Search:

Ethyl 3-ethyl-5-methyl-4-isoxazolecarboxylate Ethyl 5-methylisoxazole-3-carboxylate ETHYL 5-METHYLISOXAZOLE-4-CARBOXYLATE Ethyl 3-methylisoxazole-4-carboxylate Ethyl 3,5-dimethylisoxazole-4-carboxylate
Ethyl 3-(2,6-dichloro-phenyl)-5-methyl-isoxazole-4-carboxylate Ethyl 5-acetyl-3-methylisoxazole-4-carboxylate (2-Chloro-1,3-thiazol-5-yl)methyl 3-(2,6-dichlorophenyl)-5-methyl-4-isoxazolecarboxylate Ethyl 5-hydroxy-3-methyl-4-isoxazolecarboxylate, sodium salt hydrate Ethyl 3-(4-bromophenyl)isoxazole-4-carboxylate
BUTTPARK 153\57-22 2-((2-[(3-Methylbenzoyl)amino]acetyl)amino)ethyl 3-(2-chloro-6-fluorophenyl)-5-methyl-4-isoxazolecarboxylate (2,6-Dichloro-4-pyridyl)methyl 3-(2,6-dichlorophenyl)-5-methyl-4-isoxazolecarboxylate 2-((2-[(4-Methoxybenzoyl)amino]acetyl)amino)ethyl 3-(2-chloro-6-fluorophenyl)-5-methyl-4-isoxazolecarboxylate Benzyl 3-methyl-5-(trifluoromethyl)isoxazole-4-carboxylate
Diethyl 5-(trifluoromethyl)-3,4-isoxazoledicarboxylate 3-Acetyl-5-methyl-isoxazole-4-carboxylic acid ethyl ester 2-(([3-(2-Chloro-6-fluorophenyl)-5-methyl-4-isoxazolyl]carbonyl)amino)-2-phenylethyl 3-(2-chloro-6-fluorophenyl)-5-methyl-4-isoxazolecarboxylate

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3-Methylisoxazole-4-carboxylic acid ethyl ester 4-Isoxazolecarboxylicacid,3-methyl-,ethylester(8CI,9CI) Leflunomide Impurity 9 ETHYL 3-METHYL-1,2-OXAZOLE-4-CARBOXYLATE 3-methyl-4-isoxazolecarboxylic acid ethyl ester 4-Isoxazolecarboxylic acid, 3-methyl-, ethyl ester Ethyl 3-methylisoxazole-4-carboxylateQ: What is Ethyl 3-methylisoxazole-4-carboxylate Q: What is the CAS Number of Ethyl 3-methylisoxazole-4-carboxylate Q: What is the storage condition of Ethyl 3-methylisoxazole-4-carboxylate Q: What are the applications of Ethyl 3-methylisoxazole-4-carboxylate Ethyl 3-methylisoxazole-4-carboxylate 20328-15-8 OXAZOLE