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Type:Nitrosamines & NDSRI
API NAME:Sildenafil
Total Products: 29
Inv. Status:

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N-Nitroso Sildenafil
CAT No: CL-SDF-NO-01 CAS No: NA Mol Wt: 503.58 Mol F: C22H29N7O5S Inv Status: In Stock
Chemical Name: 5-(2-ethoxy-5-((4-methylpiperazin-1-yl)sulfonyl)phenyl)-1-methyl-6-nitroso-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
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N-Nitroso Sildenafil Impurity 1
CAT No: CL-SDF-NO-02 CAS No: NA Mol Wt: 489.55 Mol F: C21H27N7O5S Inv Status: Custom Synthesis
Chemical Name: 5-(2-ethoxy-5-((4-methylpiperazin-1-yl)sulfonyl)phenyl)-1-nitroso-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
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N-Nitroso Sildenafil Impurity 2
CAT No: CL-SDF-NO-03 CAS No: NA Mol Wt: 489.55 Mol F: C21H27N7O5S Inv Status: Custom Synthesis
Chemical Name: 5-(2-ethoxy-5-((4-nitrosopiperazin-1-yl)sulfonyl)phenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
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N-Nitroso Sildenafil Impurity 3
CAT No: CL-SDF-NO-04 CAS No: NA Mol Wt: 504.52 Mol F: C20H24N8O6S Inv Status: Custom Synthesis
Chemical Name: 5-(2-ethoxy-5-((4-nitrosopiperazin-1-yl)sulfonyl)phenyl)-1-nitroso-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
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N-Nitroso Sildenafil Impurity 4
CAT No: CL-SDF-NO-05 CAS No: NA Mol Wt: 434.47 Mol F: C18H22N6O5S Inv Status: Custom Synthesis
Chemical Name: 3-(1-methyl-4-nitroso-7-oxo-3-propyl-4,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-propoxybenzenesulfonamide
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N-Nitroso Sildenafil Impurity 5
CAT No: CL-SDF-NO-06 CAS No: NA Mol Wt: 420.44 Mol F: C17H20N6O5S Inv Status: Custom Synthesis
Chemical Name: 3-(1-nitroso-7-oxo-3-propyl-4,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-propoxybenzenesulfonamide
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N-Nitroso Sildenafil Impurity 6
CAT No: CL-SDF-NO-07 CAS No: NA Mol Wt: 449.44 Mol F: C17H19N7O6S Inv Status: Custom Synthesis
Chemical Name: 3-(1,4-dinitroso-7-oxo-3-propyl-4,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-propoxybenzenesulfonamide
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N-Nitroso Sildenafil Impurity A
CAT No: CL-SDF-NO-08 CAS No: NA Mol Wt: 503.58 Mol F: C22H29N7O5S Inv Status: Custom Synthesis
Chemical Name: 5-(2-ethoxy-5-((4-nitrosopiperazin-1-yl)sulfonyl)phenyl)-3-isobutyl-1-methyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
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N-Nitroso Sildenafil Impurity 7
CAT No: CL-SDF-NO-09 CAS No: NA Mol Wt: 503.58 Mol F: C22H29N7O5S Inv Status: Custom Synthesis
Chemical Name: 5-(2-ethoxy-5-((4-methylpiperazin-1-yl)sulfonyl)phenyl)-3-isobutyl-1-nitroso-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
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N-Nitroso Sildenafil Impurity B
CAT No: CL-SDF-NO-10 CAS No: NA Mol Wt: 505.55 Mol F: C21H27N7O6S Inv Status: Custom Synthesis
Chemical Name: 4-((4-ethoxy-3-(1-nitroso-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)phenyl)sulfonyl)-1-methylpiperazine 1-oxide
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N-Nitroso Sildenafil Impurity 8
CAT No: CL-SDF-NO-11 CAS No: NA Mol Wt: 477.54 Mol F: C20H27N7O5S Inv Status: Custom Synthesis
Chemical Name: 4-ethoxy-N-(2-(methyl(nitroso)amino)ethyl)-3-(1-methyl-7-oxo-3-propyl-4,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonamide
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N-Nitroso Sildenafil Impurity 9
CAT No: CL-SDF-NO-12 CAS No: NA Mol Wt: 205.22 Mol F: C9H11N5O Inv Status: Custom Synthesis
Chemical Name: 3-isobutyl-1-nitroso-1H-pyrazolo[4,3-d]pyrimidine
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N-Nitroso Sildenafil Impurity F
CAT No: CL-SDF-NO-13 CAS No: NA Mol Wt: 489.55 Mol F: C21H27N7O5S Inv Status: Custom Synthesis
Chemical Name: 5-(2-ethoxy-5-((4-nitrosopiperazin-1-yl)sulfonyl)phenyl)-1-methyl-3-propyl-1,4-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
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N-Nitroso Sildenafil Impurity 10
CAT No: CL-SDF-NO-14 CAS No: NA Mol Wt: 505.61 Mol F: C21H27N7O4S2 Inv Status: Custom Synthesis
Chemical Name: 5-(2-ethoxy-5-((4-nitrosopiperazin-1-yl)sulfonyl)phenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidine-7-thione
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N-Nitroso Sildenafil Impurity E
CAT No: CL-SDF-NO-15 CAS No: NA Mol Wt: 97.08 Mol F: C3H3N3O Inv Status: Justification
Chemical Name: 1-nitroso-1H-imidazole
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N-Nitroso Sildenafil Impurity C
CAT No: CL-SDF-NO-16 CAS No: NA Mol Wt: 461.5 Mol F: C19H23N7O5S Inv Status: Custom Synthesis
Chemical Name: 5-(2-hydroxy-5-((4-nitrosopiperazin-1-yl)sulfonyl)phenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
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N-Nitroso Sildenafil Impurity D
CAT No: CL-SDF-NO-17 CAS No: NA Mol Wt: 407.4 Mol F: C16H17N5O6S Inv Status: Custom Synthesis
Chemical Name: 4-ethoxy-3-(1-nitroso-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonic acid
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N-Nitroso Sildenafil Impurity 11
CAT No: CL-SDF-NO-18 CAS No: NA Mol Wt: 197.2 Mol F: C7H11N5O2 Inv Status: Custom Synthesis
Chemical Name: 4-amino-1-nitroso-3-propyl-1H-pyrazole-5-carboxamide
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N-Nitroso Sildenafil Impurity 12
CAT No: CL-SDF-NO-19 CAS No: NA Mol Wt: 371.35 Mol F: C17H17N5O5 Inv Status: Custom Synthesis
Chemical Name: 4-ethoxy-3-(1-nitroso-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzoic acid
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N-Nitroso Sildenafil Impurity 13
CAT No: CL-SDF-NO-20 CAS No: NA Mol Wt: 403.82 Mol F: C18H18ClN5O4 Inv Status: Custom Synthesis
Chemical Name: 5-(5-(2-chloroacetyl)-2-ethoxyphenyl)-1-nitroso-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
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N-Nitroso Sildenafil Impurity 14
CAT No: CL-SDF-NO-21 CAS No: NA Mol Wt: 425.84 Mol F: C16H16ClN5O5S Inv Status: Custom Synthesis
Chemical Name: 4-ethoxy-3-(1-nitroso-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonyl chloride
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N-Nitroso Sildenafil Impurity 15
CAT No: CL-SDF-NO-22 CAS No: NA Mol Wt: 397.79 Mol F: C14H12ClN5O5S Inv Status: Custom Synthesis
Chemical Name: 4-hydroxy-3-(1-nitroso-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonyl chloride
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N-Nitroso Sildenafil Impurity 16
CAT No: CL-SDF-NO-23 CAS No: NA Mol Wt: 477.54 Mol F: C20H27N7O5S Inv Status: Custom Synthesis
Chemical Name: 4-ethoxy-3-(1-methyl-4-nitroso-7-oxo-3-propyl-4,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-N-(2-(methylamino)ethyl)benzenesulfonamide
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N-Nitroso Sildenafil Impurity 17
CAT No: CL-SDF-NO-24 CAS No: NA Mol Wt: 506.54 Mol F: C20H26N8O6S Inv Status: Custom Synthesis
Chemical Name: 4-ethoxy-N-(2-(methyl(nitroso)amino)ethyl)-3-(1-methyl-4-nitroso-7-oxo-3-propyl-4,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonamide
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N-Nitroso Sildenafil Impurity 18
CAT No: CL-SDF-NO-25 CAS No: NA Mol Wt: 477.54 Mol F: C20H27N7O5S Inv Status: Custom Synthesis
Chemical Name: 4-ethoxy-N-(2-(methyl(nitroso)amino)ethyl)-3-(1-methyl-7-oxo-3-propyl-4,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonamide
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N-Nitroso Sildenafil Impurity 19
CAT No: CL-SDF-NO-26 CAS No: NA Mol Wt: 345.36 Mol F: C16H19N5O4 Inv Status: Custom Synthesis
Chemical Name: 4-(2-ethoxybenzamido)-1-nitroso-3-propyl-1H-pyrazole-5-carboxamide
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N-Nitroso Sildenafil Impurity 20
CAT No: CL-SDF-NO-27 CAS No: NA Mol Wt: 489.55 Mol F: C21H27N7O5S Inv Status: Custom Synthesis
Chemical Name: 5-(2-ethoxy-5-(piperazin-1-ylsulfonyl)phenyl)-1-methyl-4-nitroso-3-propyl-1,4-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
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N-Nitroso Sildenafil Impurity 21
CAT No: CL-SDF-NO-28 CAS No: NA Mol Wt: 355.4 Mol F: C18H21N5O3 Inv Status: Custom Synthesis
Chemical Name: 5-(2-ethoxyphenyl)-3-isobutyl-1-methyl-4-nitroso-1,4-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
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N-Nitroso Sildenafil Impurity 22
CAT No: CL-SDF-NO-29 CAS No: NA Mol Wt: 421.43 Mol F: C17H19N5O6S Inv Status: Custom Synthesis
Chemical Name: methyl 4-ethoxy-3-(1-nitroso-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate

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