C20H24N2O2
324.4 g/mol
APIDanger
Quinidine
CAS56-54-2EC200-279-0
Category
API
Compound Class
Heterocycle
Primary Use
Pharmaceutical Raw Material
Quinidine is a class IA antiarrhythmic agent, a stereoisomer of quinine, used in the manufacturing of pharmaceutical preparations for the management of cardiac rhythm disorders. It is an active pharmaceutical ingredient that prolongs action potential duration and the QT interval.
pharmaceutical raw material for antiarrhythmic 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
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CAS56-59-7
pharmaceutical raw material
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CAS56-65-5
pharmaceutical raw material
ReferenceSame Category
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CAS56-75-7
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ReferenceSame Category
L-lysine
CAS56-87-1
essential amino acid for nutrition
Referencestereoisomer of
Quinine dihydrochloride
CAS60-93-5
pharmaceutical raw material
Referencestereoisomer of
Quinine hydrochloride dihydrate
CAS6119-47-7
pharmaceutical raw material
Referencestereoisomer of
Quinine sulfate dihydrate
CAS6119-70-6
pharmaceutical raw material
Referencestereoisomer of
Quinine hydrochloride
CAS130-89-2
pharmaceutical raw material
Safety Reference
Danger
H301Toxic if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H302Harmful if swallowed
Customs Tariff Classification
The international HS code for Quinidine (CAS 56-54-2) is 2939.20.
HS code (international, 6-digit)
2939.20
EU CN code (8-digit)
2939 20 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
(S)-[(2R,4S,5R)-5-ethenyl-1-azabicyclo[2.2.2]octan-2-yl]-(6-methoxyquinolin-4-yl)methanol
InChIKey
LOUPRKONTZGTKE-LHHVKLHASA-N
SMILES
COC1=CC2=C(C=CN=C2C=C1)[C@@H]([C@H]3C[C@@H]4CCN3C[C@@H]4C=C)O
Synonyms (52)
- QDN
- Quinidine; Quinine Sulfate EP Impurity A
- (8R,9S)-Quinidine
- (9S)-6'-Methoxycinchonan-9-ol
- Apo Quinidine
- Chinidin
- Chinidin [German]
- Chinidine
- Conchinin
- Conchinine
- Conquinine
- Kinidin
- Pitayine
- QUINIDINE [MART.]
- QUININE BISULFATE IMPURITY A
- QUININE SULFATE IMPURITY A
- Quinicardine
- Quinidex
- Quinidine (>85%)
- Quinidine anhydrous
- Quinidine sulphate
- Quiniduran
- Quinindine
- Quinora
- beta-Quinidine
- beta-Quinine
- chinidinum
- quinidina
- quinidine
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