Pharmaceutical Impurity Standards & Reference Standards

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

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All 2,841
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VITAMIN

Previtamin D2

CAT No.-
CAS No.21307-05-1
Mol. F.C28H44O
Mol. W.396.66
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Isotope Labelled Compounds

Pseudo Vardenafil-d5

CAT No.-
CAS No.224788-34-5 (non-d)
Mol. F.C22H24N5O4SD5
Mol. W.464.60
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VARDENAFIL

Pseudo Vardenafil

CAT No.-
CAS No.224788-34-5
Mol. F.C22H29N5O4S
Mol. W.459.57
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VALPROIC ACID

Propyl Valpronate

CAT No.-
CAS No.112229-60-4
Mol. F.C11H22O2
Mol. W.186.30
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URAZOL

Pyridyl Urazol [4-(3-Pyridyl)-1,2,4-triazolidine-3,5-dione]

CAT No.-
CAS No.1076199-39-7
Mol. F.C7H6N4O2
Mol. W.178.15
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URAPIDIL

para-Hydroxy Urapidil

CAT No.-
CAS No.88733-12-4
Mol. F.C20H29N5O4
Mol. W.403.48
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ULIFLOXACIN

Prulifloxacin

CAT No.-
CAS No.123447-62-1
Mol. F.C21H20FN3O6S
Mol. W.461.47
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Isotope Labelled Compounds

Prulifloxacin-d8

CAT No.-
CAS No.123447-62-1 (non-d)
Mol. F.C21H12FN3O6SD8
Mol. W.469.52
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Impurity Standards

p-Toluenesulfonic Acid Impurity 3 (3-MethylbutylTosylate)

CAT No.-
CAS No.2431-75-6
Mol. F.C12H18O3S
Mol. W.242.33
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Impurity Standards

p-Toluenesulfonic Acid Impurity 2 (Methyl p-Toluenesulfonate)

CAT No.-
CAS No.80-48-8
Mol. F.C8H10O3S
Mol. W.186.23
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