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Impurity of Leflunomide API
Leflunomide EP Impurity D
Impurity
GS.11.LEF.04.png
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Product Name Leflunomide EP Impurity D
Product Category Impurities, Intermediates
Sub-Category Heterocycles, Pharmaceutical Standards, Fine Chemicals
CAS No 42831-50-5
Catalog Number GS.11.LEF.04
Chemical Name/Synonyms 5-Methylisoxazole-4-carboxylic Acid ; 5-Methyl-4-isoxazolecarboxylic Acid
Molecular Weight 127.1
Molecular Formula C5H5NO3
Purity NLT 95 %
Appearance White to Pale Brown Solid
Solubility DMSO, Methanol
Applications 5-Methylisoxazole-4-carboxylic Acid is an intermediate for synthesis of Leflunomide. Herbicidal activities towards Digitaria ciliaris.
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