Pharmaceutical Impurity Standards & Reference Standards

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

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Impurity Standards

Warfarin Impurity 2

CAT No.-
CAS No.-
Mol. F.C21H22O4
Mol. W.338.40
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Impurity Standards

Warfarin Impurity 3

CAT No.-
CAS No.-
Mol. F.C19H18O4
Mol. W.310.35
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Impurity Standards

Warfarin Impurity 4

CAT No.-
CAS No.-
Mol. F.C23H26O4
Mol. W.366.46
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Impurity Standards

Warfarin Impurity 5

CAT No.-
CAS No.-
Mol. F.C19H16O4
Mol. W.308.33
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Impurity Standards

Warfarin Impurity 6

CAT No.-
CAS No.-
Mol. F.C26H20O4
Mol. W.396.44
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Reference Standards

WEHI-539

CAT No.-
CAS No.1431866-33-9
Mol. F.C31H29N5O3S2
Mol. W.583.74
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Reference Standards

Wilforlide B

CAT No.-
CAS No.84104-70-1
Mol. F.C30H44O3
Mol. W.452.68
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Isotope Labelled Compounds

Warfarin-d5

CAT No.-
CAS No.75472-93-4
Mol. F.C19H11O4D5
Mol. W.313.37
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Reference Standards

Warfarin

CAT No.-
CAS No.81-81-2
Mol. F.C19H16O4
Mol. W.308.34
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Impurity Standards

Warfarin Impurity (Benzalacetone)

CAT No.-
CAS No.122-57-6
Mol. F.C10H10O
Mol. W.146.19
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