C22H30N6O4S
474.6 g/mol
APIWarning
Sildenafil
CAS139755-83-2
Category
API
Compound Class
Heterocycle
Primary Use
Pharmaceutical Raw Material
Sildenafil is a compound that acts as a phosphodiesterase 5 (PDE5) inhibitor and vasodilator agent. It is used as an active pharmaceutical ingredient (API) in the manufacturing of medications for urological applications.
Phosphodiesterase 5 inhibitorsUrological agentsVasodilator agents
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
Sildenafil citrate
CAS171599-83-0
pharmaceutical raw material
StrongStructure SimilarSimilarity 0.86
Desmethylsildenafil
CAS139755-82-1
pharmaceutical raw material
SimilarStructure SimilarSimilarity 0.84
Sildenafil N-oxide
CAS1094598-75-0
pharmaceutical intermediate
SimilarStructure SimilarSimilarity 0.82
Isobutyl sildenafil
CAS1391053-95-4
pharmaceutical raw material
ReferenceSame Category
4-(2-ethoxybenzamido)-1-methyl-3-propylpyrazole-5-carboxamide
CAS139756-03-9
pharmaceutical raw material
ReferenceSame Category
Uk-088800
CAS139756-21-1
pharmaceutical raw material
ReferenceSame Category
5-(5-chlorosulfonyl-2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo(4,3-D)pyrimidin-7-one
CAS139756-22-2
pharmaceutical raw material
ReferenceSame Category
Shr-1258 dimaleate
CAS1397922-61-0
pharmaceutical raw material
Safety Reference
Warning
H302Harmful if swallowed
H319Causes serious eye irritation
H412Harmful to aquatic life with long lasting effects
H315Causes skin irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Sildenafil (CAS 139755-83-2) is 2935.90.
HS code (international, 6-digit)
2935.90
EU CN code (8-digit)
2935 90 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
5-[2-ethoxy-5-(4-methylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-6H-pyrazolo[4,5-d]pyrimidin-7-one
InChIKey
BNRNXUUZRGQAQC-UHFFFAOYSA-N
SMILES
CCCC1=NN(C2=C1N=C(NC2=O)C3=C(C=CC(=C3)S(=O)(=O)N4CCN(CC4)C)OCC)C
Synonyms (40)
- Sildenafil (INN)
- 1udt
- 1xos
- 2h42
- Aphrodil
- Aphrodil (TN)
- Nipatra
- Patrex
- SILDENAFIL; VIAGRA
- Sildenafil - Bio-X trade mark
- Sildenafil Impurity J
- Sildenafil actavis
- Sildenafil ratiopharm
- Sildenafil teva
- Sildenafilo
- UK 92480-10
- Vizarsin
- sildenafil
- sildenafilum
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Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.