Benzo[d]isoxazol-3-ol

• CAT Number: L047203
• CAS Number: 21725-69-9
• Molecular Formula: C7H5NO2
• Molecular Weight: 135.12
• Purity: ≥95%
• IUPAC Name: 1,2-benzoxazol-3-one
• InChI: InChI=1S/C7H5NO2/c9-7-5-3-1-2-4-6(5)10-8-7/h1-4H,(H,8,9)
• InChIKey: QLDQYRDCPNBPII-UHFFFAOYSA-N
• SMILES: C1=CC=C2C(=C1)C(=O)NO2

Benzo[d]isoxazol-3-ol(CAT: L047203) is a heteroaromatic compound featuring a fused benzene–isoxazole ring system with a hydroxyl group at the 3-position. This structural motif offers aromatic stability and multiple reactive sites, making it a valuable intermediate in the synthesis of pharmaceuticals, agrochemicals, and fine chemicals. The isoxazole ring is frequently found in bioactive molecules due to its ability to mimic amide or ester functionalities and participate in hydrogen bonding. Benzo[d]isoxazol-3-ol is particularly useful in medicinal chemistry for developing CNS agents, anti-inflammatory drugs, and enzyme inhibitors. Its conjugated system and heteroatom arrangement enable versatile modifications for structure–activity relationship studies.