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Xylazine impurities and related standards

Xylazine is held here as a working collection of 12 reference materials across 3 CAS numbers. Within the range, numbered impurities go up to 3. 6 of the entries are impurity-type materials of the parent, 3 are salt or counter-ion variants and 2 carry a deuterium label and 1 are nitrosamine analogues. 3 entries carry a verified structure drawing, a coverage of 25%; the rest are listed without a structure rather than with an unverified one. 3 of them sit in tier A or B, meaning the data behind the page is complete enough to be indexed and quoted directly, while 9 remain tier C and are kept for search coverage. The lettered series exists because a pharmacopoeial monograph needed to name the impurities it controls, not because the letters follow any chemical order. Two suppliers can both claim coverage of a monograph and still hold different sets, so the comparison that matters is against the letter list in the monograph rather than against a catalogue heading. Asking for the specific impurity by letter and by structure is faster than asking for a percentage of total related substances, because the second question has no single answer.

Sources: DailyMed (US NLM) - XYLAZINE HYDROCHLORIDE POWDER [NGL FINE-CHEM LIMITED].

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

In this group: 2 general reference standards · 1 stable isotope labelled standard. CAS numbers are listed for 3 of 3; 3 entries carry a structure drawing.

On this page

3 reference standards

All entries — structure, identifiers and pack sizes

3 reference standards

Frequently asked

How many Xylazine-related reference standards do you hold?
3 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 3 of them and 3 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Xylazine 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 Xylazine 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 Xylazine 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.