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Pergolide impurities and related standards

Pergolide is held here as a working collection of 20 reference materials across 3 CAS numbers. Within the range, numbered impurities go up to 15. and 1 EP-designated impurities are named explicitly 14 of the entries are impurity-type materials of the parent, 2 are salt or counter-ion variants and 3 carry a deuterium label. 1 entries carry a verified structure drawing, a coverage of 5%; 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 19 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. For a laboratory setting specifications, the workable sequence is to fix the impurity list from the monograph and the degradation study first, and only then to source the standards, because the list determines which materials are worth holding.

Sources: DailyMed (US NLM) - PERGOLIDE MESYLATE POWDER [LETCO MEDICAL, LLC].

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

In this group: 3 impurity reference standards · 2 fine chemicals. CAS numbers are listed for 5 of 5; 5 entries carry a structure drawing.

On this page

5 reference standards

All entries — structure, identifiers and pack sizes

  • Pergolide

    CAS 66104-22-1C19H26N2S

    MW 314.49

    IN STOCKRS-U044399

  • Pergolide Mesylate

    CAS 66104-23-2C20H30N2O3S2

    MW 410.6

    CUSTOM SYNTHESISRS-U044400

  • Pergolide Impurity 4

    CAS 774518-04-6C19H27N2O

    MW 299.4

    IN STOCKRS-P296005

  • Pergolide Impurity 5

    CAS 63719-21-1C18H24N2O

    MW 284.4

    IN STOCKRS-P296002

  • Pergolide Impurity 10

    CAS 185340-55-0C20H28N2S2

    MW 360.6

    IN STOCKRS-P296001

5 reference standards

Frequently asked

How many Pergolide-related reference standards do you hold?
5 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 5 of them and 5 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Pergolide 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 Pergolide 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 Pergolide 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.