Oxazole-4-carboxylic acid

Expand the scope of your organic and medicinal chemistry research with Oxazole-4-carboxylic acid (CAS No.: 23012-13-7, CAT No.: SRCO-005). This heterocyclic building block features a carboxylic acid group at the 4-position of the oxazole ring, enabling a variety of transformations in pharmaceutical, materials science, and agrochemical applications. Its distinctive aromatic and polar structure makes it ideal for synthesis of novel molecules and advanced intermediates.

The molecular formula is C₄H₃NO₃, with a molecular weight of 113.07 g/mol. It typically appears as a pale orange to brown (or off-white) crystalline powder, displaying a melting point of 141–144 °C. Oxazole-4-carboxylic acid is soluble in methanol and compatible with various organic solvents, making it easy to incorporate into complex synthesis workflows.

Product Highlights

Technical Features & Benefits

• Aromatic Heterocycle: The oxazole ring imparts stability and reactivity for advanced transformation chemistry.
• Carboxylic Acid Functionality: Enables a wide range of derivatization options such as amidation, esterification, and cross-coupling reactions.
• Key Building Block: Frequently used in the synthesis of pharmaceuticals, agrochemicals, and specialty chemicals.
• Excellent Purity: Supplied at ≥97% purity for consistent research and industry results.
• Versatile Solubility: Compatible with both polar and some non-polar organic solvents.

Application Areas

• Precursor to heterocyclic and bioactive molecules for drug discovery
• Intermediate in agrochemical R&D and synthesis
• Building block for advanced materials and functional polymers
• Exploration of STING agonists and immuno-oncology therapeutics
• Custom synthesis and functional group intercalation

Safety & Handling

• Handle with appropriate PPE: gloves, goggles, and lab coat
• Avoid inhalation, ingestion, and direct contact with eyes or skin
• Store tightly sealed in a cool, dry, ventilated area, away from incompatible materials
• Dispose of according to local, regional, and national regulations

Why Choose SRIRAMCHEM Laboratories Pvt. Ltd.?

• Proven track record of purity control and prompt supply since 2013
• Comprehensive batch-specific analytical documentation, including COA and NMR
• Scalable and custom synthesis options for unique research needs
• Responsive technical support and customer service

Request a Quote or Sample Today!
Empower your research with SRIRAMCHEM’s high-quality oxazole-4-carboxylic acid. Contact us for pricing, samples, or specialized synthesis solutions.