C6H7FN2O
142.13 g/mol
Pharmaceutical IntermediateWarning
6-ethyl-5-fluoro-4(3H)-pyrimidone
CAS137234-87-8EC422-460-5
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
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.
Pharmaceutical intermediate for drug manufacturingResearch compound in medicinal chemistry
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.
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Related Compounds
ReferenceSame Category
4-ethyl-5-fluoropyrimidine
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pharmaceutical intermediate
ReferenceSame Category
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pharmaceutical intermediate
ReferenceSame Category
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pharmaceutical intermediate
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CAS13726-84-6
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Referencesame scaffold
6-Methoxy-5-methyl-4(1H)-pyrimidinone
CAS14341-18-5
research compound
Referencesame scaffold
2-Chloro-4-hydroxy-5-fluoropyrimidine
CAS155-12-4
research compound
Referencesame scaffold
6-hydroxy-4-pyrimidinone
CAS1193-24-4
research compound
Referencesame scaffold
2-Butyl-1,6-dihydro-N,N,4-trimethyl-6-oxo-5-pyrimidineacetamide
CAS1315478-13-7
pharmaceutical intermediate
Safety Reference
Warning
H302Harmful if swallowed
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H314Causes severe skin burns and eye damage
H317May cause an allergic skin reaction
H318Causes serious eye damage
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 6-ethyl-5-fluoro-4(3H)-pyrimidone (CAS 137234-87-8) is 2933.59.
HS code (international, 6-digit)
2933.59
EU CN code (8-digit)
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.
Identifiers
IUPAC Name
4-ethyl-5-fluoro-1H-pyrimidin-6-one
InChIKey
ZEMRCKIJEFNNCO-UHFFFAOYSA-N
SMILES
CCC1=C(C(=O)NC=N1)F
Synonyms (14)
- Voriconazole Impurity O
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