Pharmaceutical Impurity Standards & Reference Standards

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

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ZEATIN

Trans-Zeatin

CAT No.-
CAS No.1637-39-4
Mol. F.C10H13N5O
Mol. W.219.25
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Isotope Labelled Compounds

Trans-Zeatin-13C-d3

CAT No.-
CAS No.1637-39-4 (non-labelled)
Mol. F.13C9 CH10D3N5O
Mol. W.223.26
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ZEATIN

trans-Zeatin-Riboside

CAT No.-
CAS No.6025-53-2
Mol. F.C15H21N5O5
Mol. W.351.36
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Impurity Standards

Tocopherol Impurity 3

CAT No.-
CAS No.-
Mol. F.C29H52O2
Mol. W.432.73
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VITAMIN

trans-Doxercalciferol

CAT No.-
CAS No.74007-20-8
Mol. F.C28H44O2
Mol. W.412.66
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Impurity Standards

Tocopherol Impurity 2 (Deshydroxy TocopherolQuinone)

CAT No.-
CAS No.75917-94-1
Mol. F.C29H50O2
Mol. W.430.72
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Impurity Standards

Tocopherol EP Impurity D (Vitamin E Impurity E)

CAT No.-
CAS No.-
Mol. F.C40H76
Mol. W.557.05
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Impurity Standards

Tocopherol Impurity 1

CAT No.-
CAS No.3808-26-2
Mol. F.C29H48O2
Mol. W.428.70
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VIOLAXANTHIN

trans-Violaxanthin

CAT No.-
CAS No.126-29-4
Mol. F.C40H56O4
Mol. W.600.89
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Isotope Labelled Compounds

Tauroursodiol-d4 (Tauroursodeoxycholic Acid-d4)

CAT No.-
CAS No.14605-22-2 (non-labelled)
Mol. F.C26H41D4NO6S
Mol. W.503.73
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