Home/Compounds/Pharmaceutical Intermediate/4,5,6,7-Tetrahydro-1-(4-methoxyphenyl)-6-(4-nitrophenyl)-7-oxo-1H-pyrazolo[3,4-c]pyridine-3-carboxylic acid ethyl ester
C22H20N4O6
436.4 g/mol
Pharmaceutical IntermediateWarning
Ethyl 1-(4-methoxyphenyl)-6-(4-nitrophenyl)-7-oxo-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylate
CAS536759-91-8EC611-033-0
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
This compound is a pharmaceutical intermediate specifically used in the manufacture of Apixaban. It is a substituted pyrazolo[5,4-c]pyridine bearing ester, nitro, and methoxyphenyl functional groups.
Intermediate in Apixaban synthesisPharmaceutical manufacturing raw material
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
SimilarStructure SimilarSimilarity 0.78
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ReferenceSame Category
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Safety Reference
Warning
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for Ethyl 1-(4-methoxyphenyl)-6-(4-nitrophenyl)-7-oxo-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylate (CAS 536759-91-8) is 2933.79.
HS code (international, 6-digit)
2933.79
EU CN code (8-digit)
2933 79 00
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
ethyl 1-(4-methoxyphenyl)-6-(4-nitrophenyl)-7-oxo-4,5-dihydropyrazolo[5,4-c]pyridine-3-carboxylate
InChIKey
RQNAOIQEGPVYTC-UHFFFAOYSA-N
SMILES
CCOC(=O)C1=NN(C2=C1CCN(C2=O)C3=CC=C(C=C3)[N+](=O)[O-])C4=CC=C(C=C4)OC
Synonyms (8)
- Apixaban Impurity 44
- Apixaban Related Compound F
- Apixaban intermediate
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