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Adenine impurities and related standards

Adenine is held here as a working collection of 24 reference materials across 14 CAS numbers. 6 of the entries are impurity-type materials of the parent, 4 are salt or counter-ion variants and 3 carry a deuterium label and 1 are nitrosamine analogues. 16 entries carry a verified structure drawing, a coverage of 67%. 14 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. Relative response factors are what decide whether a percentage on a chromatogram means anything. Impurities that lack a chromophore, or whose ultraviolet maximum sits away from the detection wavelength used for the parent, under-respond by a factor that has to be established with a solution of the standard itself rather than assumed. A certificate that names the synthetic route the standard was qualified against is more useful than one that only reports purity, since the same impurity can arise from two routes and only one of them will be present in a given product.

Sources: DailyMed (US NLM) - ADENINE 3X LIQUID [ENERGIQUE, INC.].

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

In this group: 10 fine chemicals · 6 stable isotope labelled standards · 3 general reference standards · 2 drug metabolite standards. CAS numbers are listed for 23 of 23; 23 entries carry a structure drawing.

On this page

23 reference standards

All entries — structure, identifiers and pack sizes

23 reference standards

Frequently asked

How many Adenine-related reference standards do you hold?
23 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 23 of them and 23 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply an Adenine 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 Adenine 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 Adenine 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.