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Cortisone impurities and related standards

Cortisone is held here as a working collection of 29 reference materials across 13 CAS numbers. 3 of the entries are impurity-type materials of the parent, 11 are salt or counter-ion variants and 11 carry a deuterium label. 13 entries carry a verified structure drawing, a coverage of 45%; the rest are listed without a structure rather than with an unverified one. 13 of them sit in tier A or B, meaning the data behind the page is complete enough to be indexed and quoted directly, while 16 remain tier C and are kept for search coverage. The labelled members of this group are used as internal standards, which puts the isotopic distribution at the centre of the specification rather than at its edge: the label position and the enrichment have to be stated, and a co-eluting unlabelled fraction changes the result even when the chemical purity looks acceptable. Anyone comparing two suppliers on this parent should ask the same three questions of each: which letters are held, what the content basis is, and whether the structure on the page was verified against the name rather than copied from it.

Sources: DailyMed (US NLM) - CVS CORTISONE LIQUID (HYDROCORTISONE) LIQUID [CVS PHARMACY].

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

In this group: 12 fine chemicals · 6 drug metabolite standards · 3 pharmaceutical intermediates · 3 stable isotope labelled standards. CAS numbers are listed for 25 of 25; 25 entries carry a structure drawing.

On this page

25 reference standards

All entries — structure, identifiers and pack sizes

25 reference standards

Frequently asked

How many Cortisone-related reference standards do you hold?
25 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 25 of them and 25 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Cortisone 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 Cortisone 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 Cortisone 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.