Pharmaceutical Impurity Standards & Reference Standards

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

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ERYTHROMYCIN

Erythromycin Impurity 7

CAT No.-
CAS No.119699-81-9
Mol. F.C49H96N2O14Si2
Mol. W.993.48
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ERYTHROMYCIN

Erythromycin Impurity 8

CAT No.-
CAS No.119665-78-0
Mol. F.C48H94N2O14Si2
Mol. W.979.45
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ERYTHROMYCIN

Erythromycin EP Impurity K (Erythromycin D)

CAT No.-
CAS No.33442-56-7
Mol. F.C36H65NO12
Mol. W.703.91
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ERYTHROMYCIN

Erythromycin A 9-Methoxime

CAT No.-
CAS No.53066-26-5
Mol. F.C38H70N2O13
Mol. W.762.98
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ERYTHROMYCIN

Erythromycin Impurity 9

CAT No.-
CAS No.-
Mol. F.C38H63NO13
Mol. W.741.92
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ERYTHROSINE

Erythrosine

CAT No.-
CAS No.16423-68-0
Mol. F.C20H6I4O5. 2 Na
Mol. W.833.89 2 22.99
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ESBIOTHRIN

Esbiothrin

CAT No.-
CAS No.84030-86-4
Mol. F.C19H26O3
Mol. W.302.42
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ESKETAMINEHYDROCHLORIDE

Esketamine EP Impurity C

CAT No.-
CAS No.90717-17-2
Mol. F.C12H13ClO2
Mol. W.224.69
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ESMOLOL

Esmolol-d7 HCl

CAT No.-
CAS No.1346746-38-0 (freebase)
Mol. F.C16H18NO4D7. HCl
Mol. W.302.42 36.46
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ESMOLOL

Esmolol-d7 Acid Sodium Salt

CAT No.-
CAS No.1346604-59-8 (non-labelled)
Mol. F.C15H15NO4D7. Na
Mol. W.287.39 22.99
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