ChemicalBook >> CAS DataBase List >>5-Methyl-4-isoxazolecarboxylic acid
5-Methyl-4-isoxazolecarboxylic acid
- CAS No.
- 42831-50-5
- Chemical Name:
- 5-Methyl-4-isoxazolecarboxylic acid
- Synonyms
- 5-METHYLISOXAZOLE-4-CARBOXYLIC ACID;TIMTEC-BB SBB005909;Leflunomide Impurity D;Lefluonamide Impurity D;LeflunoMide EP IMpurity D;Leflunomide impurities1343;Methylisoxazole-4-carboxylic;5-Methyl-4-isoxazolecarboxyl;5-METHYLISOXAZOLE-4-CARBOXYLIC;5-methylisoxazole-4-formic acid
- CBNumber:
- CB8342928
- Molecular Formula:
- C5H5NO3
- Molecular Weight:
- 127.1
- MDL Number:
- MFCD00955655
- MOL File:
- 42831-50-5.mol
- MSDS File:
- SDS
Last updated:2024-02-19 12:30:55
| Melting point | 144-148 °C(lit.) |
|---|---|
| Boiling point | 308.3±22.0 °C(Predicted) |
| Density | 1.348±0.06 g/cm3(Predicted) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | DMSO (Slightly), Methanol (Slightly) |
| form | Solid |
| pka | 2.85±0.25(Predicted) |
| color | White to Pale Brown |
| BRN | 116000 |
| CAS DataBase Reference | 42831-50-5(CAS DataBase Reference) |
| FDA UNII | BL2Q213Q2M |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a | |||||||||
| Hazard Codes | Xi,F | |||||||||
| Risk Statements | 36/37/38-37/38-36-10 | |||||||||
| Safety Statements | 22-26-36/37/39-36-16 | |||||||||
| WGK Germany | 3 | |||||||||
| HazardClass | IRRITANT | |||||||||
| HS Code | 29349990 | |||||||||
| NFPA 704 |
|
5-Methyl-4-isoxazolecarboxylic acid price More Price(26)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 633771 | 5-Methylisoxazole-4-carboxylic acid 97% | 42831-50-5 | 10g | $162 | 2024-03-01 | Buy |
| Sigma-Aldrich | 633771 | 5-Methylisoxazole-4-carboxylic acid 97% | 42831-50-5 | 1g | $34.7 | 2023-06-20 | Buy |
| TCI Chemical | M1740 | 5-Methylisoxazole-4-carboxylic Acid >98.0%(T)(HPLC) | 42831-50-5 | 5g | $17 | 2024-03-01 | Buy |
| TCI Chemical | M1740 | 5-Methylisoxazole-4-carboxylic Acid >98.0%(T)(HPLC) | 42831-50-5 | 25g | $56 | 2024-03-01 | Buy |
| Alfa Aesar | L14628 | 5-Methylisoxazole-4-carboxylic acid, 98+% | 42831-50-5 | 5g | $83.2 | 2021-12-16 | Buy |
5-Methyl-4-isoxazolecarboxylic acid Preparation Products And Raw materials
Raw materials
Preparation Products
Global( 427)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 | sales@hbmojin.com | China | 12453 | 58 |
| Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 | sales@capotchem.com | China | 29797 | 60 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 | info@dakenam.com | China | 15371 | 58 |
| Beijing Cooperate Pharmaceutical Co.,Ltd | 010-60279497 | sales01@cooperate-pharm.com | CHINA | 1811 | 55 |
| Hi-Tech Chemistry Corp | 0519-86626038 | yuhh@hitechem.com | CHINA | 811 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21695 | 55 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 32480 | 60 |
| career henan chemical co | +86-0371-86658258 | sales@coreychem.com | China | 29914 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
| Jinan Finer Chemical Co., Ltd | +86-531-88989536 +86-15508631887 | sales@finerchem.com | China | 2966 | 58 |
View Lastest Price from 5-Methyl-4-isoxazolecarboxylic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2024-02-19 | 5-methylisoxazole-4-carboxylic acid
42831-50-5
|
US $450.00 / g | 1g | 97 | 500 Kg | R&D Scientific Inc. | |
 |
2023-11-01 | 5-Methyl-4-isoxazolecarboxylic acid
42831-50-5
|
US $0.00-0.00 / kg | 0.1kg | 99.0%min | 2000kg | Hangzhou ICH Biofarm Co., Ltd | |
 |
2023-09-19 | 5-Methyl-4-isoxazolecarboxylic acid
42831-50-5
|
US $0.00 / KG | 1KG | 99% | 50000KG/month | Hebei Mojin Biotechnology Co., Ltd |
-
- 5-methylisoxazole-4-carboxylic acid
42831-50-5
- US $450.00 / g
- 97
- R&D Scientific Inc.
-
- 5-Methyl-4-isoxazolecarboxylic acid
42831-50-5
- US $0.00-0.00 / kg
- 99.0%min
- Hangzhou ICH Biofarm Co., Ltd
-
- 5-Methyl-4-isoxazolecarboxylic acid
42831-50-5
- US $0.00 / KG
- 99%
- Hebei Mojin Biotechnology Co., Ltd
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CAS No.42831-50-5 5-Methyl-4-isoxazolecarboxylic acid
5-METHYLISOXAZOLE-4-CARBOXYLIC ACID
MethylisoChemicalbookxazole-4-carboxylic
42831-50-5
42931-50-5
C5H5NO3
C5H4NO3
CARBOXYLIC ACID
Heterocyclic Building Blocks
Isoxazoles
Building Blocks
Intermediates
Intermediates & Fine Chemicals
Pharmaceuticals
Isoxazoles, Oxadiazoles, Oxazoles
Acids and Derivatives
Heterocycles
Carboxylic Acids
Oxazoles, Isoxazoles & Benzoxazoles
Oxazole&Isoxazole
Organic acids
(intermediate of leflunomide)
Heterocyclic Compounds
Carboxylic Acids
Oxazoles, Isoxazoles & Benzoxazoles
Building Blocks
Heterocyclic Building Blocks
Isoxazoles