Phthalazone

• CAT Number: R036803
• CAS Number: 119-39-1
• Molecular Formula: C8H6N2O
• Molecular Weight: 146.15
• Purity: ≥95%
• Synonyms: Phthalazinone; Azelastine impurity; 1-Hydroxyphthalazine; 1-Oxophthalazine; ?1-Phthalazinol; ICX 56225770; NSC 10432; NSC 52567; Phthalazin-1-one; ?
• Storage: Desiccate at RT
• IUPAC Name: 2H-phthalazin-1-one
• InChI: InChI=1S/C8H6N2O/c11-8-7-4-2-1-3-6(7)5-9-10-8/h1-5H,(H,10,11)
• InChIKey: IJAPPYDYQCXOEF-UHFFFAOYSA-N
• SMILES: C1=CC=C2C(=C1)C=NNC2=O

Phthalazone (Cat No.: R036803), also known as 2,3-dihydrophthalazine-1,4-dione, is a heterocyclic compound featuring a fused aromatic ring system with two nitrogen atoms and two ketone groups. It serves as a key intermediate in the synthesis of pharmaceuticals, agrochemicals, and dyes. Its electron-rich nitrogen and carbonyl functionalities make it valuable in condensation and cyclization reactions. Phthalazone exhibits potential biological activities and is studied for its reactivity in forming complex heterocycles. It is intended strictly for research use in organic and medicinal chemistry applications.