Pharmaceutical Impurity Standards & Reference Standards

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

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Isotope Labelled Compounds

Zafirlukast-13C-d3

CAT No.-
CAS No.-
Mol. F.C30H30N3O6S13CD3
Mol. W.579.70
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ZAFIRLUKAST

Zafirlukast Related Compound C

CAT No.-
CAS No.N/A
Mol. F.C27H27N3O6S
Mol. W.521.60
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ZAFIRLUKAST

Zafirlukast Related Compound D

CAT No.-
CAS No.N/A
Mol. F.C31H33N3O6S
Mol. W.575.69
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ZAFIRLUKAST

Zafirlukast Related Compound E

CAT No.-
CAS No.N/A
Mol. F.C31H33N3O6S
Mol. W.575.69
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Isotope Labelled Compounds

Zafirlukast-13C-d6

CAT No.-
CAS No.107753-78-6 (non-labelled)
Mol. F.13C C30H27N3O6SD6
Mol. W.582.71
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Impurity Standards

Zafirlukast Impurity 1

CAT No.-
CAS No.-
Mol. F.C25H25N3O4S
Mol. W.463.55
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Impurity Standards

Zafirlukast Impurity 2

CAT No.-
CAS No.-
Mol. F.C31H33N3O7S
Mol. W.591.68
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Impurity Standards

Zafirlukast Impurity 3

CAT No.-
CAS No.-
Mol. F.C31H33N3O7S
Mol. W.591.68
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Reference Standards

Zalcitabine

CAT No.-
CAS No.7481-89-2
Mol. F.C9H13N3O3
Mol. W.211.22
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TYROSINE

Z-Gly-Tyr-OBn

CAT No.-
CAS No.-
Mol. F.C26H26N2O6
Mol. W.462.50
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