Safety Reference
Warning
H302Harmful if swallowed
H400Very toxic to aquatic life
H410
Sourcing 6-ethyl-5-fluoro-4(3H)-pyrimidone?
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Boc-L-glutamic acid 5-tert-butyl ester
pharmaceutical intermediate
Sourcing 6-ethyl-5-fluoro-4(3H)-pyrimidone?
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6-ethyl-5-fluoro-4(3H)-pyrimidone is a fluorinated pyrimidinone compound used as a pharmaceutical intermediate. Its structure features an aromatic heterocyclic ring with a fluorine substituent, contributing to its role in active pharmaceutical ingredient synthesis.
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-ethyl-5-fluoro-4(3H)-pyrimidone (CAS 137234-87-8) 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.
4-ethyl-5-fluoro-1H-pyrimidin-6-one
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