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Rifapentin impurities and related standards

Rifapentin is held here as a working collection of 7 reference materials across 1 CAS numbers. Within the range, numbered impurities go up to 5. 5 of the entries are impurity-type materials of the parent, 1 carry a deuterium label. 1 entries carry a verified structure drawing, a coverage of 14%; the rest are listed without a structure rather than with an unverified one. 1 of them sit in tier A or B, meaning the data behind the page is complete enough to be indexed and quoted directly, while 6 remain tier C and are kept for search coverage. Because these are degradation and process impurities of a single parent, the useful comparison between suppliers is not the headline count but which letters are actually covered and whether each one arrives with a structure and a stated content basis. Where a letter exists in a monograph but not in a supplier catalogue, that gap is what stops a validation study, and it is worth asking for the letter rather than for a percentage.

Sources: DailyMed (US NLM) - RIFAPENTINE TABLET, FILM COATED [MACLEODS PHARMACEUTICALS LIMITED].

1 reference standard related to Rifapentin held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.

CAS numbers are listed for 1 of 1; 1 entry carries a structure drawing.

On this page

1 reference standards

Entry — structure, identifiers and pack sizes

  • Rifapentinum

    CAS 61379-65-5C47H64N4O12

    MW 877

    IN STOCKRS-U093172

1 reference standards

Frequently asked

How many Rifapentin-related reference standards do you hold?
1 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 1 of them and 1 entry carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Rifapentin impurity that is not listed here?
Yes. Non-compendial impurities can be quoted from a structure — a CAS number is not required. Send the structure, a SMILES string or the parent drug substance with your enquiry and we will come back with availability.
What documentation is supplied with Rifapentin impurities?
Every lot ships with its own certificate of analysis. The certificate records the catalogue number, the batch number, the tests performed, the specification applied and the result obtained for that lot. A safety data sheet is supplied with the shipment.
Do you publish prices or a lead time for Rifapentin impurities?
No price list is published: quotations are prepared per enquiry, because availability and packing depend on the lot and the quantity you need. Send the catalogue number and the quantity and a technical contact will answer with availability and a quotation.

Cannot find the impurity you need? Non-compendial impurities can be quoted from a structure — a CAS number is not required. Write to sales@rssechem.com.