English
Leflunomide/Teriflunomide
42831-50-5
Off-white to white powder
Loss on drying ≤ 0.5%
Residue on ignition ≤ 0.1%
Content ≥ 98.5%
Related substances: unknown impurities ≤ 0.5%, total impurities ≤ 1.0%
Product Description
We are a pharmaceutical intermediate manufacturer of 5-Methyl-4-isoxazolecarboxylic acid.
Its CAS No. is 42831-50-5
Our pharmaceutical intermediates can be used in a variety of APIs such as Articaine, Pyrantel, Bicalutamide, etc.
Product Category | Leflunomide/Teriflunomide |
CAS NO | 42831-50-5 |
Product Specifications | Off-white to white powder Loss on drying ≤ 0.5% Residue on ignition ≤ 0.1% Content ≥ 98.5% Related substances: unknown impurities ≤ 0.5%, total impurities ≤ 1.0% |
42831-50-5 5-METHYL-4-ISOXAZOLECARBOXYLIC ACID.pdf
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5-Methyl-4-isoxazolecarboxylic acid is produced by EASTFINE , and we are in charge of overseas selling . Not just trading compamy .
China,America,Brazil,England,Russia,Poland,India,Pakistan,NewZealand,Korea,Australia,Dubai,Turkey,Indonesia,UAE.
yes , you can have 1 5-Methyl-4-isoxazolecarboxylic acid sample for starting the business , but it is not free
please contact sale team for detail .
The molecular formula of this compound is C5H5NO3, indicating 5 carbon atoms, 5 hydrogen atoms, 1 nitrogen atom, and 3 oxygen atoms.
Pharmaceutical Research: It can be used as an intermediate in the synthesis of bioactive compounds, including drugs or drug candidates.
Organic Synthesis: It serves as a building block in various chemical reactions for the synthesis of more complex molecules.
Materials Science: It may also be used in research related to new materials, due to the presence of its heterocyclic ring.
The isoxazole ring is a five-membered ring containing one nitrogen atom and one oxygen atom.
The methyl group (-CH₃) is attached to the 5-position of the ring.
The carboxylic acid group (-COOH) is attached to the 4-position of the ring, giving the molecule acidic properties.
This compound can be synthesized through various organic reactions, such as:
Cyclization: Starting with appropriate precursors like an alkene, nitrile, and oxygen sources, the isoxazole ring can be formed via cyclization reactions.
Functional Group Addition: A methyl group and a carboxylic acid group can be introduced at the appropriate positions using standard chemical reactions such as alkylation and oxidation.
Yes, it is available from various chemical suppliers for research purposes. It is commonly used in academic and industrial laboratories for synthetic applications.
Appearance: It is typically a crystalline solid.
Solubility: It may be soluble in organic solvents like ethanol, but insoluble in water, depending on the specific conditions.
Melting Point: The melting point could vary but is generally within the range of organic acids with similar structures.
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