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ChemicalBook >> CAS DataBase List >> 4-Methylisoxazole-5-carboxylic acid

4-Methylisoxazole-5-carboxylic acid

4-Methylisoxazole-5-carboxylic acid price.
  • $38 - $1337.24
  • Product name: 4-Methylisoxazole-5-carboxylic acid
  • CAS: 261350-46-3
  • MF: C5H5NO3
  • MW: 127.1
  • EINECS:
  • MDL Number:MFCD08235209
  • Synonyms:4-Methylisoxazole-5-carboxylic acid;5-Carboxy-4-methylisoxazole;4-Methyl-1,2-oxazole-5-carboxylic acid;4-Methyl-5-isoxazolecarboxylic acid;5-Carboxy-4-methylisoxazole, 4-Methyl-1,2-oxazole-5-carboxylic acid;4-Methylisoxazole-5-carboxylicacid95%;5-Isoxazolecarboxylic acid, 4-methyl-
Price35 Properties Safety Information Description
35 prices
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  • aablocks
  • ACHEMBLOCK
  • Acints
  • Activate Scientific
  • Advanced Chemicals Intermediat
  • AK Scientific
  • American Custom Chemicals Corporation
  • Atlantic Research Chemicals
  • Chemenu
  • Crysdot
  • Matrix Scientific
  • SynQuest Laboratories
  • Synthonix
  • TRC
Package
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  • 25G
  • 1gm:
  • Manufactureraablocks
  • Product numberAA002RQ5
  • Product description4-Methylisoxazole-5-carboxylic acid 97%
  • Packaging250mg
  • Price$53
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA002RQ5
  • Product description4-Methylisoxazole-5-carboxylic acid 95%
  • Packaging500mg
  • Price$71
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA002RQ5
  • Product description4-Methylisoxazole-5-carboxylic acid 98%
  • Packaging100mg
  • Price$38
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA002RQ5
  • Product description4-Methylisoxazole-5-carboxylic acid 95%
  • Packaging1g
  • Price$140
  • Updated2026-05-28
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberU137630
  • Product description4-Methylisoxazole-5-carboxylic acid 97%
  • Packaging5G
  • Price$255
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberU137630
  • Product description4-Methylisoxazole-5-carboxylic acid 97%
  • Packaging25G
  • Price$1020
  • Updated2026-05-27
  • Buy
  • ManufacturerAcints
  • Product numberJL-14G-002
  • Product description4-Methyl-isoxazole-5-carboxylic acid 95%+
  • Packaging5g
  • Price$919.35
  • Updated2026-05-20
  • Buy
  • ManufacturerAcints
  • Product numberJL-14G-002
  • Product description4-Methyl-isoxazole-5-carboxylic acid 95%+
  • Packaging1g
  • Price$278.1
  • Updated2026-05-20
  • Buy
  • ManufacturerAcints
  • Product numberJL-14G-002
  • Product description4-Methyl-isoxazole-5-carboxylic acid 95%+
  • Packaging250mg
  • Price$109.35
  • Updated2026-05-20
  • Buy
  • ManufacturerActivate Scientific
  • Product numberAS45484
  • Product description4-Methylisoxazole-5-carboxylic acid 96%
  • Packaging1g
  • Price$171
  • Updated2026-06-04
  • Buy
  • ManufacturerActivate Scientific
  • Product numberAS45484
  • Product description4-Methylisoxazole-5-carboxylic acid 96%
  • Packaging5g
  • Price$823
  • Updated2026-06-04
  • Buy
  • ManufacturerAdvanced Chemicals Intermediat
  • Product numberJL-14G-002
  • Product description4-Methyl-isoxazole-5-carboxylic acid 95%+
  • Packaging1g
  • Price$278.1
  • Updated2026-05-19
  • Buy
  • ManufacturerAdvanced Chemicals Intermediat
  • Product numberJL-14G-002
  • Product description4-Methyl-isoxazole-5-carboxylic acid 95%+
  • Packaging5g
  • Price$919.35
  • Updated2026-05-19
  • Buy
  • ManufacturerAdvanced Chemicals Intermediat
  • Product numberJL-14G-002
  • Product description4-Methyl-isoxazole-5-carboxylic acid 95%+
  • Packaging250mg
  • Price$109.35
  • Updated2026-05-19
  • Buy
  • ManufacturerAK Scientific
  • Product number2244AB
  • Product description4-Methylisoxazole-5-carboxylicacid
  • Packaging250mg
  • Price$208
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0066587
  • Product description4-METHYLISOXAZOLE-5-CARBOXYLIC ACID 95.00%
  • Packaging1G
  • Price$779.78
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA002RQ5 4-Methylisoxazole-5-carboxylic acid 97% 250mg $53 2026-05-28 Buy
aablocks AA002RQ5 4-Methylisoxazole-5-carboxylic acid 95% 500mg $71 2026-05-28 Buy
aablocks AA002RQ5 4-Methylisoxazole-5-carboxylic acid 98% 100mg $38 2026-05-28 Buy
aablocks AA002RQ5 4-Methylisoxazole-5-carboxylic acid 95% 1g $140 2026-05-28 Buy
ACHEMBLOCK U137630 4-Methylisoxazole-5-carboxylic acid 97% 5G $255 2026-05-27 Buy
ACHEMBLOCK U137630 4-Methylisoxazole-5-carboxylic acid 97% 25G $1020 2026-05-27 Buy
Acints JL-14G-002 4-Methyl-isoxazole-5-carboxylic acid 95%+ 5g $919.35 2026-05-20 Buy
Acints JL-14G-002 4-Methyl-isoxazole-5-carboxylic acid 95%+ 1g $278.1 2026-05-20 Buy
Acints JL-14G-002 4-Methyl-isoxazole-5-carboxylic acid 95%+ 250mg $109.35 2026-05-20 Buy
Activate Scientific AS45484 4-Methylisoxazole-5-carboxylic acid 96% 1g $171 2026-06-04 Buy
Activate Scientific AS45484 4-Methylisoxazole-5-carboxylic acid 96% 5g $823 2026-06-04 Buy
Advanced Chemicals Intermediat JL-14G-002 4-Methyl-isoxazole-5-carboxylic acid 95%+ 1g $278.1 2026-05-19 Buy
Advanced Chemicals Intermediat JL-14G-002 4-Methyl-isoxazole-5-carboxylic acid 95%+ 5g $919.35 2026-05-19 Buy
Advanced Chemicals Intermediat JL-14G-002 4-Methyl-isoxazole-5-carboxylic acid 95%+ 250mg $109.35 2026-05-19 Buy
AK Scientific 2244AB 4-Methylisoxazole-5-carboxylicacid 250mg $208 2021-12-16 Buy
American Custom Chemicals Corporation CHM0066587 4-METHYLISOXAZOLE-5-CARBOXYLIC ACID 95.00% 1G $779.78 2021-12-16 Buy
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Properties

Boiling point :310 ºC
Density :1.348
Flash point :141 ºC
storage temp. :2-8°C(protect from light)
pka :1.72±0.37(Predicted)
form :solid
color :Brown
InChI :1S/C5H5NO3/c1-3-2-6-9-4(3)5(7)8/h2H,1H3,(H,7,8)
InChIKey :RITPLLYUVXGBFT-UHFFFAOYSA-N
SMILES :Cc1cnoc1C(O)=O

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram 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.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

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Suppliers and manufacturers

J & K SCIENTIFIC LTD. Shanghai Longsheng chemical Co.,Ltd. China Langchem Inc. Shanghai Sunway Pharmaceutical Technology Co., Ltd Atop-Pharma (Shanghai) Technology Co., Ltd. Shanghai Xiannuo Biotechnology Co., Ltd. Nanjing Norris-Pharm Technology Co., Ltd HBCChem, Inc. Bide Pharmatech Ltd. Hangzhou J&H Chemical Co., Ltd.