Pharmaceutical Impurity Standards & Reference Standards

Browse our full catalog of pharmaceutical impurities, reference materials, and research chemicals.

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SULFURIC ACID

Potassium Methyl Sulfate

CAT No.-
CAS No.562-54-9
Mol. F.CH3O4S. K
Mol. W.111.10 39.10
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SILDENAFIL

Piperazonifil

CAT No.-
CAS No.1335201-04-1
Mol. F.C25H34N6O4
Mol. W.482.59
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Isotope Labelled Compounds

Propoxyphenyl Thioaildenafil-d7

CAT No.-
CAS No.-
Mol. F.C24H27N6O3S2D7
Mol. W.525.75
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Isotope Labelled Compounds

Propoxyphenyl Thiohomosidenafil-d5

CAT No.-
CAS No.-
Mol. F.C24H29N6O3S2D5
Mol. W.523.74
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Isotope Labelled Compounds

Propoxyphenyl-Thiosildenafil-d8

CAT No.-
CAS No.-
Mol. F.C23H24N6O3S2D8
Mol. W.512.73
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Isotope Labelled Compounds

Propoxyphenyl-Thiohydroxyhomosildenafil-d4

CAT No.-
CAS No.-
Mol. F.C24H30N6O4S2D4
Mol. W.538.73
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Isotope Labelled Compounds

Piperidino Acetildenafil-d5

CAT No.-
CAS No.-
Mol. F.C23H24N5O3D5
Mol. W.428.55
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SILDENAFIL

Propoxyphenyl Thiohomo Sildenafil

CAT No.-
CAS No.479073-88-6
Mol. F.C24H34N6O3S2
Mol. W.518.70
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SILDENAFIL

Propoxyphenyl Thioaildenafil

CAT No.-
CAS No.856190-49-3
Mol. F.C24H34N6O3S2
Mol. W.518.70
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SILDENAFIL

Propoxyphenyl Sildenafil

CAT No.-
CAS No.877777-10-1
Mol. F.C23H32N6O4S
Mol. W.488.61
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