Product Name: 6,7-Bis-(2-methoxyethoxy)-4(3H)-quinazolinone CAS Number: 179688-29-0 Molecular Formula: C??H??N?O? Molecular Weight: 280.27 g/mol Synonyms: 6,7-Di(2-methoxyethoxy)-3H-quinazolin-4-one; Quinazolinone derivative intermediate Classification: Quinazolinone heterocyclic compound, pharmaceutical intermediate, kinase inhibitor intermediate, fine chemical raw material

Appearance: White to off-white crystalline powder, odorless Melting Point: 186–190 °C Boiling Point: Decomposes at high temperature, no fixed boiling point Density: 1.26±0.05 g/cm3 Solubility: Slightly soluble in water; soluble in methanol, ethanol, DMSO, DMF and acetone; insoluble in alkane solvents Stability: Stable under normal temperature and sealed dry condition; light-sensitive and heat-sensitive; avoid strong oxidants, high temperature and prolonged heating; stable under neutral and weak acidic conditions Key Parameters: Purity ≥98.0% (HPLC); Loss on Drying ≤0.5%; Residue on Ignition ≤0.1%

This product is a key quinazolinone heterocyclic intermediate.

Mainly used as pharmaceutical raw material and organic synthesis building block for the preparation of antitumor drugs, tyrosine kinase inhibitors and targeted therapeutic drug intermediates. Widely applied in the research and development of quinazoline derivative APIs, biochemical pharmacological research and custom organic synthesis. Also used in fine chemical synthesis, heterocyclic derivative preparation and laboratory chemical research reagents.

Packaging Laboratory grade: 1g, 5g, 10g sealed brown glass bottles Industrial grade: 25g, 100g, 1kg aluminum foil vacuum bag with moisture-proof packaging

Storage: Store in cool, dry, dark and well-ventilated place; keep tightly sealed, strictly moisture-proof and light-proof; away from high temperature and strong oxidants Shelf Life: 24 months under sealed, dry and dark storage Transportation: Avoid rain, humidity and strong light; handle gently to prevent package damage and moisture absorption