Impurity Standards

IP, USP and EP Compliant

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Impurity Standards

Rifapentine Impurity 1 (3-Formyl-DesacetylRifapentine)

CAT No.-
CAS No.16783-97-4
Mol. F.C36H45NO12
Mol. W.683.75
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Impurity Standards

Rifabutin EP Impurity E (25-O-Desacetyl Rifabutin)

CAT No.-
CAS No.100324-63-8
Mol. F.C44H60N4O10
Mol. W.804.98
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Impurity Standards

Rifabutin EP Impurity E-d7

CAT No.-
CAS No.1294503-48-2 (non-labelled)
Mol. F.C44H53N4O10D7
Mol. W.812.03
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Impurity Standards

Rifabutin EP Impurity B (3-Amino Rifamycin S)

CAT No.-
CAS No.51756-80-0
Mol. F.C37H46N2O12
Mol. W.710.78
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Impurity Standards

Rifabutin EP Impurity C (21,31-DidehydroRifabutin)

CAT No.-
CAS No.-
Mol. F.C46H60N4O11
Mol. W.845.01
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Impurity Standards

Rifabutin EP Impurity D (3-Amino-4-ImidoRifamycin S)

CAT No.-
CAS No.62041-01-4
Mol. F.C37H47N3O11
Mol. W.709.79
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Impurity Standards

Rifampicin Impurity 1

CAT No.-
CAS No.-
Mol. F.C44H52N4O13
Mol. W.844.92
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Impurity Standards

Rifampicin EP Impurity B (Rifampicin N-Oxide)

CAT No.-
CAS No.125833-03-6
Mol. F.C43H58N4O13
Mol. W.838.95
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Impurity Standards

Rifampicin EP Impurity A (Rifampicin Quinone)

CAT No.-
CAS No.13983-13-6
Mol. F.C43H56N4O12
Mol. W.820.94
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Impurity Standards

Rifampicin Impurity 2

CAT No.-
CAS No.-
Mol. F.C41H56N4O12
Mol. W.796.92
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