C7H3NO3
149.1 g/mol
Pharmaceutical IntermediateWarning
2,3-Pyridinedicarboxylic anhydride
CAS699-98-9EC211-834-1
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
2,3-Pyridinedicarboxylic anhydride is a chemical compound used as a pharmaceutical intermediate in the synthesis of other compounds. It features a fused ring structure with ester functional groups, contributing to its reactivity in organic synthesis.
Pharmaceutical intermediate for 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.
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Related Compounds
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pharmaceutical intermediate
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pharmaceutical intermediate
ReferenceSame Category
Ethyl 3-amino-4-pyrazolecarboxylate
CAS6994-25-8
pharmaceutical intermediate
ReferenceSame Category
1,4-Dioxaspiro[4.5]decane-8-carbonitrile
CAS69947-09-7
pharmaceutical intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 2,3-Pyridinedicarboxylic anhydride (CAS 699-98-9) is 2933.39.
HS code (international, 6-digit)
2933.39
EU CN code (8-digit)
2933 39 99
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
furo[3,4-b]pyridine-5,7-dione
InChIKey
MCQOWYALZVKMAR-UHFFFAOYSA-N
SMILES
C1=CC2=C(C(=O)OC2=O)N=C1
Synonyms (16)
- Furo[3,4-b]pyridine-5,7-dione
- Furo[3,7-dione
- PYRIDINIC ANHYDRIDE
- Quinolinic anhydride
- furo[3,4]pyridine-5,7-dione
- quinolinic acid anhydride
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