Pharmaceutical Impurity Standards & Reference Standards

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

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ESMOLOL

Esmolol Acid HCl

CAT No.-
CAS No.83356-60-9
Mol. F.C15H23NO4. HCl
Mol. W.281.35 36.46
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ESMOLOL

Esmolol HCl

CAT No.-
CAS No.81161-17-3
Mol. F.C16H25NO4. HCl
Mol. W.295.38 36.46
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ESMOLOL

Esmolol Isopropyl Amide Analog HCl

CAT No.-
CAS No.-
Mol. F.C18H28N2O3. HCl
Mol. W.320.44 36.46
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ESMOLOL

Esmolol Dimer HCl

CAT No.-
CAS No.98903-89-0 (freebase)
Mol. F.C31H46N2O7. HCl
Mol. W.558.72 36.46
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ERYTHROMYCIN

Erythromycylamine (Dirithromycin EP Impurity A)

CAT No.-
CAS No.26116-56-3
Mol. F.C37H70N2O12
Mol. W.734.97
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ERYTHROMYCIN

Erythromycylamine-13C-d3

CAT No.-
CAS No.-
Mol. F.13C C36H67N2O12D3
Mol. W.738.98
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ERYTHROMYCIN

Erythromycin B

CAT No.-
CAS No.527-75-3
Mol. F.C37H67NO12
Mol. W.717.95
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ERYTHROMYCIN

Erythromycin Impurity J (Roxithromycin EPImpurity C)

CAT No.-
CAS No.111321-02-9
Mol. F.C37H68N2O13
Mol. W.748.96
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ERYTHROMYCIN

Erythromycin EP Impurity N

CAT No.-
CAS No.3225-82-9
Mol. F.C21H38O7
Mol. W.402.53
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ERYTHROMYCIN

Erythromycin EP Impurity D(Anhydroerythromycin A)

CAT No.-
CAS No.23893-13-2
Mol. F.C37H65NO12
Mol. W.715.93
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