C12H12N2O3
232.23 g/mol
APIDanger
Nalidixic acid
CAS389-08-2EC206-864-7
Category
API
Compound Class
Heterocycle
Primary Use
Pharmaceutical Raw Material
Nalidixic acid is the first synthetic quinolone antibiotic, used as an active pharmaceutical ingredient in manufacturing.
active pharmaceutical ingredient for antibacterial drug productionquinolone antibiotic starting materialpharmaceutical manufacturing intermediate
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.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
Relevant lists:California Proposition 65
CAS 389-08-2
Related Compounds
ApplicationSame Use
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CAS14698-29-4
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ReferenceSame Category
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pharmaceutical raw material
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Prasugrel hydrochloride
CAS389574-19-0
pharmaceutical raw material
ReferenceSame Category
Trioxsalen
CAS3902-71-4
pharmaceutical raw material
ReferenceSame Category
Trimebutine
CAS39133-31-8
pharmaceutical raw material
Safety Reference
Danger
H302Harmful if swallowed
H317May cause an allergic skin reaction
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H351Suspected of causing cancer
Regulatory Compliance1
- California Proposition 65USRegulation
Customs Tariff Classification
The international HS code for Nalidixic acid (CAS 389-08-2) is 2933.99.
HS code (international, 6-digit)
2933.99
EU CN code (8-digit)
2933 99 80
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
1-ethyl-7-methyl-4-oxo-1,8-naphthyridine-3-carboxylic acid
InChIKey
MHWLWQUZZRMNGJ-UHFFFAOYSA-N
SMILES
CCN1C=C(C(=O)C2=C1N=C(C=C2)C)C(=O)O
Synonyms (94)
- Acide nalidixique [INN-French]
- Acido nalidixico [INN-Spanish]
- Acidum nalidixicum [INN-Latin]
- Nalidixic acid (JP18/USP/INN)
- Nalidixic acid, European Pharmacopoeia (EP)
- Nalidixic acid, United States Pharmacopeia (USP)
- Nalidixic acid, meets USP testing specifications
- 1-ethyl-7-methyl-4-oxo-1
- Acid, Nalidixic
- Acide nalidixico
- Acide nalidixico [Italian]
- Acide nalidixique
- Acide nalidixique [French]
- Acido nalidissico
- Acido nalidixico
- Acidum nalidixicum
- Anhydrous, Nalidixate Sodium
- Betaxina
- Cybis
- Dixiben
- Dixinal
- Eucisten
- Eucistin
- Innoxalomn
- Innoxalon
- Jicsron
- Kusnarin
- NALIDIXIC ACID [MART.]
- Nalidic acid
- Nalidicron
- Nalidixan
- Nalidixane
- Nalidixanum;
- Nalidixate
- Nalidixic
- Nalidixic acid (NegGram)
- Nalidixic acid (Standard)
- Nalidixin
- Nalidixinic acid
- Nalitucsan
- Nalix
- Nalurin
- Narigix
- Naxuril
- NegGram
- NegGram (TN)
- Negram
- Nevigramon
- Nicelate
- Nogram
- Poleon
- Sicmylon
- Specifen
- Specifin
- Unaserus
- Uralgin
- Uriben
- Uriclar
- Urisal
- Urodixin
- Uroman
- Uroneg
- Uronidix
- Uropan
- WIN 18,320
- Wintomylon
- Wintron
- nalidixic acid