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Mebrofenin impurities and related standards

Mebrofenin is held here as a working collection of 12 reference materials across 2 CAS numbers. Within the range, numbered impurities go up to 5. 8 of the entries are impurity-type materials of the parent, 1 carry a deuterium label and 1 are nitrosamine analogues. 2 entries carry a verified structure drawing, a coverage of 17%; the rest are listed without a structure rather than with an unverified one. 2 of them sit in tier A or B, meaning the data behind the page is complete enough to be indexed and quoted directly, while 10 remain tier C and are kept for search coverage. The practical difficulty with a series of this size is not obtaining any one impurity but demonstrating that the set is complete. A validation package normally needs the specified impurities plus the unspecified ones above the reporting threshold, and the second group is where a catalogue either holds the material or does not. 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) - KIT FOR THE PREPARATION OF TECHNETIUM TC 99M MEBROFENIN INJECTION, POWDER, LYOPHILIZED, FOR SOLUTION [SUN PHAR.

2 reference standards related to Mebrofenin held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.

In this group: 1 fine chemical · 1 impurity reference standard. CAS numbers are listed for 2 of 2; 2 entries carry a structure drawing.

On this page

2 reference standards

All entries — structure, identifiers and pack sizes

  • Mebrofenin

    CAS 78266-06-5C15H19BrN2O5

    MW 387.23

    IN STOCKRS-U088915

  • Mebrofenin Impurity 4

    CAS 65717-98-8C15H20N2O5

    MW 308.33

    IN STOCKRS-M388001

2 reference standards

Frequently asked

How many Mebrofenin-related reference standards do you hold?
2 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 2 of them and 2 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Mebrofenin 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 Mebrofenin 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 Mebrofenin 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.