Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Sourcing 6,7-Dimethoxyquinazoline-2,4(1H,3H)-dione?
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N-[5-(Diphenylphosphinoylmethyl)-4-(4-fluorophenyl)-6-isopropylpyrimidin-2-yl]-N-methylmethanesulfonamide
pharmaceutical intermediate
Sourcing 6,7-Dimethoxyquinazoline-2,4(1H,3H)-dione?
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This compound is a pharmaceutical intermediate used in the manufacturing of alpha1-adrenergic blockers. It serves as a key intermediate for the production of medications such as alfuzosin, prazosin, terazosin, doxazosin, and IAAP, which are effective as antihypertensives.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
The international HS code for 6,7-Dimethoxyquinazoline-2,4(1H,3H)-dione (CAS 28888-44-0) is 2933.59.
2933.59
2933 59 95
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
6,7-dimethoxy-1H-quinazoline-2,4-dione
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