Pharmaceutical Impurity Standards & Reference Standards

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

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ANECORTAVE

Anecortave Impurity 4

CAT No.-
CAS No.50733-54-5
Mol. F.C23H31BrO6
Mol. W.483.40
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ANECORTAVE

Anecortave Impurity 5

CAT No.-
CAS No.-
Mol. F.C21H30O4
Mol. W.346.47
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AMPHOTERICIN B

Amphotericin X1 (13-O-Methyl Amphotericin B)

CAT No.-
CAS No.-
Mol. F.C48H75NO17
Mol. W.938.13
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AMPHOTERICIN B

Amphotericin X2 (13-O-Ethyl Amphotericin B)

CAT No.-
CAS No.-
Mol. F.C49H77NO17
Mol. W.952.16
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AMPHOTERICIN B

Amphotericin B-13C6 Methyl Ester

CAT No.-
CAS No.36148-89-7 (non-d)
Mol. F.C48H75NO17
Mol. W.944.06
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AMPHOTERICIN B

Amphotericin A (28, 29-Dihydro-Amphotericin B)

CAT No.-
CAS No.1405-32-9
Mol. F.C47H75NO17
Mol. W.926.12
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AMPHOTERICIN B

Amphotericin B-13C6

CAT No.-
CAS No.1397-89-3 (non-labelled)
Mol. F.C47H73O17
Mol. W.930.04
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AMPICILLIN

Ampicillin-d5

CAT No.-
CAS No.1426173-65-0
Mol. F.C16H14N3O4SD5
Mol. W.354.44
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AMPICILLIN

Ampicillin EP Impurity B (L-Ampicillin)

CAT No.-
CAS No.19379-33-0
Mol. F.C16H19N3O4S
Mol. W.349.41
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AMPICILLIN

Ampicillin EP Impurity C (AmpicillinDiketopiperazine)

CAT No.-
CAS No.-
Mol. F.C16H19N3O4S
Mol. W.349.41
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