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Displaying 1 to 22 ( of 22 products )
Sildenafil 2-Ethoxybenzoyl Chloride Impurity ; 100 MG
Catalogue #: SDF32-100

2-Ethoxybenzoyl chloride ; CAS # 42926-52-3 ;

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Sildenafil Aldehyde Impurity ; 100 MG
Catalogue #: SDF33-100

2-Ethoxy-5-(4-methyl-piperazin-1-yl-sulphonyl)-benzaldehyde ; CAS # 332374-42-2 ;

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Sildenafil Amino Amide Impurity ; 100 MG
Catalogue #: SDF34-100

4-Amino-1-methyl-3-propylpyrazole-5-carboxamide ; CAS # 139756-02-8 ;

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Sildenafil Carboxylic Acid Impurity ; 100 MG
Catalogue #: SDF35-100

4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d] pyrimidin-5-yl)benzoic acid ; CAS # 147676-78-6;

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Sildenafil Chloroacetyl Impurity ; 100 MG
Catalogue #: SDF37-100

5-[5-(2-Chloroacetyl)-2-ethoxyphenyl]-1,6-dihydro-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one ; CAS # 1058653-74-9 ;

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Sildenafil Chlorosulfone 2-Methyl Isomer ; 100 MG
Catalogue #: SDF38-100

4-Ethoxy-3-(2-methyl-7-oxo-3-propyl-6,7-dihydro-2H-pyrazolo[4,3-d] pyrimidin-5-yl)benzene-1-sulfonyl chloride ; CAS # 501120-42-9 ;

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Sildenafil Chlorosulfone Impurity ; 100 MG
Catalogue #: SDF39-100

5-(5-Chlorosulfonyl-2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazole[4,3-d]pyrimidine-7-one ; CAS # 139756-22-2 ;

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Sildenafil Chlorosulfone O-Desethyl Impurity ; 100 MG
Catalogue #: SDF40-100

4-Hydroxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d] pyrimidin-5-yl)benzene-1-sulfonyl chloride ; CAS # 139756-27-7 ;

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Sildenafil Des(methylpiperazinyl) Chlorosulfone Impurity ; 10 MG
Catalogue #: SDF48-10

4-Ethoxy-3-(7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d] pyrimidin-5-yl) benzene-1-sulfonyl chloride ; CAS # 139756-31-3 ;

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Sildenafil Descarbon Impurity ; 100 MG
Catalogue #: SDF51-100

3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-N-[2-(dimethylamino)ethyl]-4-ethoxy-benzenesulfonamide ; CAS # 1393816-99-3 ;

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Sildenafil Di-Amide Impurity ; 100 MG
Catalogue #: SDF41-100

4-(2-Ethoxybenzamido)-1-methyl-3-n-propylpyrazole-5-carboxamide ; CAS # 139756-03-9 ;

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Sildenafil Disulfonamide Dimer Impurity ; 100 MG
Catalogue #: SDF44-100

5-{2 -Ethoxy-5-[(4-{[4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5yl)phenyl]sulfonyl}piperazino)sulfonyl]phenyl}-1-methyl-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-7-one ; CAS # 1346602-67-2 ;

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Sildenafil EP Impurity A ; 100 MG
Catalogue #: SDF01-100

Sildenafil Isobutyl Analog ; Sildenafil USP RC A ;

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Sildenafil EP Impurity B ; 100 MG
Catalogue #: SDF02-100

Sildenafil N-Oxide ; CAS # 1094598-75-0 ;

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Sildenafil EP Impurity C ; 100 MG
Catalogue #: SDF03-100

O-Desethyl Sildenafil ; CAS # 139755-91-2 ;

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Sildenafil EP Impurity D ; 100 MG
Catalogue #: SDF04-100

Sildenafil Desmethylpiperazinyl Sulfonic Acid ; CAS # 1357931-55-5 ;

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Sildenafil Isobutylpyrazolopyrimidine Impurity ; 100 MG
Catalogue #: SDF46-100

3-(2-Methylpropyl)-1H-pyrazolo[4,3-d]pyrimidine ; CAS # 1346600-82-5 ;

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Sildenafil Lactam Impurity ; 100 MG
Catalogue #: SDF47-100

5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazole[4,3-d]pyrimidine-7-one ; CAS # 139756-21-1 ;

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Sildenafil Monosulfone Dimer Impurity ; 10 MG
Catalogue #: SDF42-10

5-[2-Ethoxy-5-[4-[4-ethoxy-3-(1-methyl-7-oxo-3-propyl-4,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)phenyl]sulfonyl]phenyl]-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one ; CAS # 1346603-48-2 ;

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Sildenafil N-Desmethyl Metabolite ; 100 MG
Catalogue #: SDF49-100

5-[2-Ethoxy-5-(piperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-4H-pyrazolo[5,4-e]pyrimidin-7-one ; CAS # 139755-82-1 ;

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Sildenafil N-Desmethyl Thione Impurity ; 10 MG
Catalogue #: SDF50-10

Desmethyl Thiosildenafil ; 5-[2-Ethoxy-5-(1-piperazinylsulfonyl)phenyl]-1,6-dihydro-1-methyl-3-propyl- 7H-pyrazolo[4,3-d]pyrimidine-7-thione ; CAS # 479073-86-4 ;

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Sildenafil N-Ethyl Analog ; 100 MG
Catalogue #: SDF52-100

5-[2-Ethoxy-5-(4-ethylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-4H-pyrazolo[5,4-e]pyrimidin-7-one ; CAS # 642928-07-2 ;

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Displaying 1 to 22 ( of 22 products )