Pharmaceutical Impurity Standards & Reference Standards

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

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Impurity Standards

Ketotifen EP Impurity E

CAT No.-
CAS No.1346603-71-1
Mol. F.C19H19NOS
Mol. W.309.43
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Impurity Standards

Ketotifen EP Impurity F Hemifumarate (Mixture ofEnol and Ketone)

CAT No.-
CAS No.59743-87-2
Mol. F.C19H19NOS. 1/2 C4H4O4
Mol. W.309.43 1/2116.07
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Impurity Standards

Ketotifen EP Impurity G

CAT No.-
CAS No.43076-16-0
Mol. F.C19H17NO2S
Mol. W.323.42
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Impurity Standards

Ketotifen Impurity 1 HCl

CAT No.-
CAS No.-
Mol. F.C19H19NOS. HCl
Mol. W.309.43 36.46
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Impurity Standards

Ketotifen Impurity 2

CAT No.-
CAS No.59743-84-9
Mol. F.C14H10O2S
Mol. W.242.29
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Impurity Standards

Ketotifen Impurity 3

CAT No.-
CAS No.34580-20-6
Mol. F.C18H17NOS
Mol. W.295.40
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Isotope Labelled Compounds

Ketotifen-13C-d3

CAT No.-
CAS No.34580-13-7 (non-labelled)
Mol. F.13C C18H16D3NOS
Mol. W.313.44
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KF31327

KF31327

CAT No.-
CAS No.220060-39-9
Mol. F.C24H28N6OS
Mol. W.448.59
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Isotope Labelled Compounds

Kifunensine-13C2

CAT No.-
CAS No.N/A
Mol. F.C8H12N2O6
Mol. W.234.17
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KIFUNENSINE

Kifunensine

CAT No.-
CAS No.109944-15-2
Mol. F.C8H12N2O6
Mol. W.232.19
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