C22H19ClN2O5
426.8 g/mol
Pharmaceutical IntermediateWarning
Chloropretadalafil
CAS171489-59-1
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
Chloropretadalafil is a chemical compound used as a pharmaceutical intermediate, primarily in research and manufacturing settings. It features a complex polycyclic structure with multiple aromatic rings and functional groups including an amide, ester, and ether linkages.
pharmaceutical 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.
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Related Compounds
ReferenceSame Category
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ReferenceSame Category
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pharmaceutical intermediate
ReferenceSame Category
Methyl 3-(3-(((tert-butoxycarbonyl)amino)methyl)phenyl)propanoate
CAS171662-99-0
pharmaceutical intermediate
Referencesame scaffold
Cis-(1R,3R)-1,2,3,4-Tetrahydro-1-(3,4-methylenedioxyphenyl)-9H-pyrido[3,4-b]indole-3-carboxylic acid methyl ester hydrochloride
CAS171752-68-4
pharmaceutical intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Chloropretadalafil (CAS 171489-59-1) is 2934.99.
HS code (international, 6-digit)
2934.99
EU CN code (8-digit)
2934 99 90
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
methyl (1R,3R)-1-(1,3-benzodioxol-5-yl)-2-(2-chloroacetyl)-1,3,4,9-tetrahydropyrido[3,4-b]indole-3-carboxylate
InChIKey
JUKHNCNDFOAFLT-IIBYNOLFSA-N
SMILES
COC(=O)[C@H]1CC2=C([C@H](N1C(=O)CCl)C3=CC4=C(C=C3)OCO4)NC5=CC=CC=C25
Synonyms (18)
- Chloropretadalafil
- Tadalafil Impurity 17
- Tadalafil Impurity 37
- rel-Chloropretadalafil
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