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ChemicalBook >> CAS DataBase List >> 5-Ethyl-isoxazole-4-carboxylic acid

5-Ethyl-isoxazole-4-carboxylic acid

$38 - $1530
Product name: 5-Ethyl-isoxazole-4-carboxylic acid
CAS: 134541-03-0
MF: C6H7NO3
MW: 141.12
EINECS:
MDL Number:MFCD07357474
Synonyms:4-Isoxazolecarboxylicacid,5-ethyl-(9CI);5-ethyl-4-isoxazolecarboxylic acid;5-ethyl-4-isoxazolecarboxylic acid(SALTDATA: FREE);5-ETHYL-1,2-OXAZOLE-4-CARBOXYLIC ACID;4-Isoxazolecarboxylic acid, 5-ethyl-;5-Ethyl-isoxazole-4-carboxylic acid

Price21 Properties Safety Information Description

21 prices

Selected condition：

Brand

aablocks
Activate Scientific
AK Scientific
American Custom Chemicals Corporation
Biosynth
ChemBridge Corporation
Chemenu
Crysdot
Matrix Scientific
TRC

Package

5MG
10mg
100mg
250mg
250.00mg
1.00g
1g
2.5g
5.00g
5g
10g

Manufactureraablocks
Product numberAA0070AR
Product description5-ETHYL-ISOXAZOLE-4-CARBOXYLIC ACID 95%
Packaging100mg
Price$38
Updated2026-05-28
Buy

Manufactureraablocks
Product numberAA0070AR
Product description5-ETHYL-ISOXAZOLE-4-CARBOXYLIC ACID 95%
Packaging1g
Price$227
Updated2026-05-28
Buy

Manufactureraablocks
Product numberAA0070AR
Product description5-ETHYL-ISOXAZOLE-4-CARBOXYLIC ACID 95%
Packaging5g
Price$840
Updated2026-05-28
Buy

Manufactureraablocks
Product numberAA0070AR
Product description5-ETHYL-ISOXAZOLE-4-CARBOXYLIC ACID 95%
Packaging10g
Price$1530
Updated2026-05-28
Buy

ManufacturerActivate Scientific
Product numberAS8138
Product description5-Ethyl-isoxazole-4-carboxylic acid 95%
Packaging5g
Price$1329
Updated2026-06-04
Buy

ManufacturerActivate Scientific
Product numberAS8138
Product description5-Ethyl-isoxazole-4-carboxylic acid 95%
Packaging250mg
Price$201
Updated2026-06-04
Buy

ManufacturerActivate Scientific
Product numberAS8138
Product description5-Ethyl-isoxazole-4-carboxylic acid 95%
Packaging1g
Price$397
Updated2026-06-04
Buy

ManufacturerAK Scientific
Product number2914AL
Product description5-Ethyl-isoxazole-4-carboxylicacid
Packaging100mg
Price$505
Updated2021-12-16
Buy

ManufacturerAK Scientific
Product number2914AL
Product description5-Ethyl-isoxazole-4-carboxylicacid
Packaging5g
Price$1386
Updated2021-12-16
Buy

ManufacturerAmerican Custom Chemicals Corporation
Product numberCHM0376215
Product description5-ETHYL-ISOXAZOLE-4-CARBOXYLIC ACID 95.00%
Packaging5MG
Price$495.99
Updated2021-12-16
Buy

ManufacturerBiosynth
Product numberJFA54103
Product description5-Ethyl-isoxazole-4-carboxylic acid
Packaging2.5g
Price$1180
Updated2026-06-04
Buy

ManufacturerBiosynth
Product numberJFA54103
Product description5-Ethyl-isoxazole-4-carboxylic acid
Packaging250mg
Price$317.5
Updated2026-06-04
Buy

ManufacturerChemBridge Corporation
Product numberBB-4043511
Product description5-ethyl-4-isoxazolecarboxylicacid 95%
Packaging250mg
Price$170
Updated2021-12-16
Buy

ManufacturerChemenu
Product numberCM243367
Product description5-Ethylisoxazole-4-carboxylicacid 96%
Packaging1g
Price$321
Updated2021-12-16
Buy

ManufacturerChemenu
Product numberCM243367
Product description5-Ethylisoxazole-4-carboxylicacid 96%
Packaging5g
Price$963
Updated2021-12-16
Buy

ManufacturerCrysdot
Product numberCD11290748
Product description5-Ethylisoxazole-4-carboxylic acid 95+%
Packaging5g
Price$1022
Updated2026-05-26
Buy

Manufacturer	Product number	Product description	Packaging	Price	Updated	Buy
aablocks	AA0070AR	5-ETHYL-ISOXAZOLE-4-CARBOXYLIC ACID 95%	100mg	$38	2026-05-28	Buy
aablocks	AA0070AR	5-ETHYL-ISOXAZOLE-4-CARBOXYLIC ACID 95%	1g	$227	2026-05-28	Buy
aablocks	AA0070AR	5-ETHYL-ISOXAZOLE-4-CARBOXYLIC ACID 95%	5g	$840	2026-05-28	Buy
aablocks	AA0070AR	5-ETHYL-ISOXAZOLE-4-CARBOXYLIC ACID 95%	10g	$1530	2026-05-28	Buy
Activate Scientific	AS8138	5-Ethyl-isoxazole-4-carboxylic acid 95%	5g	$1329	2026-06-04	Buy
Activate Scientific	AS8138	5-Ethyl-isoxazole-4-carboxylic acid 95%	250mg	$201	2026-06-04	Buy
Activate Scientific	AS8138	5-Ethyl-isoxazole-4-carboxylic acid 95%	1g	$397	2026-06-04	Buy
AK Scientific	2914AL	5-Ethyl-isoxazole-4-carboxylicacid	100mg	$505	2021-12-16	Buy
AK Scientific	2914AL	5-Ethyl-isoxazole-4-carboxylicacid	5g	$1386	2021-12-16	Buy
American Custom Chemicals Corporation	CHM0376215	5-ETHYL-ISOXAZOLE-4-CARBOXYLIC ACID 95.00%	5MG	$495.99	2021-12-16	Buy
Biosynth	JFA54103	5-Ethyl-isoxazole-4-carboxylic acid	2.5g	$1180	2026-06-04	Buy
Biosynth	JFA54103	5-Ethyl-isoxazole-4-carboxylic acid	250mg	$317.5	2026-06-04	Buy
ChemBridge Corporation	BB-4043511	5-ethyl-4-isoxazolecarboxylicacid 95%	250mg	$170	2021-12-16	Buy
Chemenu	CM243367	5-Ethylisoxazole-4-carboxylicacid 96%	1g	$321	2021-12-16	Buy
Chemenu	CM243367	5-Ethylisoxazole-4-carboxylicacid 96%	5g	$963	2021-12-16	Buy
Crysdot	CD11290748	5-Ethylisoxazole-4-carboxylic acid 95+%	5g	$1022	2026-05-26	Buy

Next Last

Properties

Melting point :85-87 °C(Solv: ligroine (8032-32-4))
Boiling point :290.4±20.0 °C(Predicted)
Density :1.273±0.06 g/cm3(Predicted)
pka :2.81±0.10(Predicted)

Safety Information

Symbol(GHS):

Signal word:

Warning

Hazard statements:

Code	Hazard statements	Hazard class	Category	Signal word	P-Codes
H302	Harmful if swallowed	Acute toxicity,oral	Category 4	Warning	P264, P270, P301+P312, P330, P501
H315	Causes skin irritation	Skin corrosion/irritation	Category 2	Warning	P264, P280, P302+P352, P321,P332+P313, P362
H319	Causes serious eye irritation	Serious eye damage/eye irritation	Category 2A	Warning	P264, P280, P305+P351+P338,P337+P313P
H335	May cause respiratory irritation	Specific target organ toxicity, single exposure;Respiratory tract irritation	Category 3	Warning

Precautionary statements:

P261	Avoid breathing dust/fume/gas/mist/vapours/spray.
P264	Wash hands thoroughly after handling.
P264	Wash skin thouroughly after handling.
P270	Do not eat, drink or smoke when using this product.
P271	Use only outdoors or in a well-ventilated area.
P280	Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312	IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352	IF ON SKIN: wash with plenty of soap and water.
P304+P340	IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338	IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P330	Rinse mouth.
P332+P313	IF SKIN irritation occurs: Get medical advice/attention.
P337+P313	IF eye irritation persists: Get medical advice/attention.
P362	Take off contaminated clothing and wash before reuse.
P403+P233	Store in a well-ventilated place. Keep container tightly closed.
P405	Store locked up.
P501	Dispose of contents/container to..…

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Suppliers and manufacturers

J & K SCIENTIFIC LTD. Xi'an NewProChem Co.,Ltd. Amadis Chemical Company Limited Aikon International Limited Yujinpharma(Tianjin) Technology Co.,Ltd. Fan De(Beijing) Biotechnology Co., Ltd. Xi'an Minze Pharmaceutical Technology Co., Ltd Shaanxi Dideu Medichem Co. Ltd Shanghai Haohong Pharmaceutical Co., Ltd. Bide Pharmatech Ltd.

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5-Ethyl-isoxazole-4-carboxylic acid

Properties

Safety Information

Description

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