C19H26ClNO6
399.9 g/mol
APIWarning
Naloxone hydrochloride dihydrate
CAS51481-60-8
Category
API
Compound Class
Heterocycle
Primary Use
Pharmaceutical Raw Material
Naloxone hydrochloride dihydrate is a salt and hydrate form of the opioid antagonist naloxone. It is used as an active pharmaceutical ingredient (API) in drug products for reversing or reducing the effects of opioid overdoses.
pharmaceutical raw material for opioid overdose reversal productsAPI in injectable and nasal spray formulations
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
StrongSame Parent
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SimilarStructure SimilarSimilarity 0.75
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Safety Reference
Warning
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Naloxone hydrochloride dihydrate (CAS 51481-60-8) is 2939.19.
HS code (international, 6-digit)
2939.19
EU CN code (8-digit)
2939 19 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
(4R,4aS,7aR,12bS)-4a,9-dihydroxy-3-prop-2-enyl-2,4,5,6,7a,13-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7-one;dihydrate;hydrochloride
InChIKey
TXMZWEASFRBVKY-IOQDSZRYSA-N
SMILES
C=CCN1CC[C@]23[C@@H]4C(=O)CC[C@]2([C@H]1CC5=C3C(=C(C=C5)O)O4)O.O.O.Cl
Synonyms (26)
- NALOXONE HYDROCHLORIDE DIHYDRATE (EP MONOGRAPH)
- Naloxone for peak identification, European Pharmacopoeia (EP)
- Naloxone hydrochloride dihydrate, European Pharmacopoeia (EP)
- Naloxone HCl Dihydrate
- Naloxone chlorhydrate
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