Nitazoxanide impurities and related standards

Nitazoxanide is held here as a working collection of 10 reference materials across 6 CAS numbers. Within the range, numbered impurities go up to 4. 4 of the entries are impurity-type materials of the parent, 1 carry a deuterium label and 1 are nitrosamine analogues. 6 entries carry a verified structure drawing, a coverage of 60%. 6 of them sit in tier A or B, meaning the data behind the page is complete enough to be indexed and quoted directly, while 4 remain tier C and are kept for search coverage. Method transfer is the usual reason a laboratory needs the whole set rather than a few members: specificity has to be demonstrated against every impurity that could plausibly co-elute, and a spiked solution prepared from the actual standards is the accepted way to do it. Where the impurity is a chiral species, the enantiomeric ratio belongs on the specification alongside the chemical purity, because an achiral method reports the two together as one peak.

Sources: DailyMed (US NLM) - NITAZOXANIDE TABLET [E5 PHARMA, LLC].

9 reference standards related to Nitazoxanide 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 · 2 drug metabolite standards · 1 pharmaceutical intermediate. CAS numbers are listed for 9 of 9; 9 entries carry a structure drawing.

On this page

9 reference standards

All entries — structure, identifiers and pack sizes

Nitazoxanide

CAS 55981-09-4C12H9N3O5S

MW 307.28

IN STOCKRS-U054284
2-Amino-5-nitrothiazole

CAS 121-66-4C3H3N3O2S

MW 145.14

IN STOCKRS-U056044
Methyl 1-((2-Benzyloxycarbonxyl)phenyl)-2,3,4-tri-O-acetyl-β-D-glucopyranuronate

CAS 221287-88-3C27H28O12

MW 544.51

CUSTOM SYNTHESISRS-D128078
Methyl 1-(2-Carboxyphenyl)-2,3,4-tri-O-acetyl-β-D-glucopyranuronate

CAS 221287-90-7C20H22O12

MW 454.38

BACK ORDERRS-D128079
Methyl 1-[[2-N-(5-Nitrothiazolyl)carboxamido]phenyl]-2,3,4-tri-O-acetyl-β-D-glucopyranuronate

CAS 221287-92-9C23H23N3O13S

MW 581.51

BACK ORDERRS-P011930
Nitazoxanide-[D4]

CAS 1246819-17-9C12H9N3O5S

MW 311.31

CUSTOM SYNTHESISRS-I091152
Nitazoxanide Impurity 1

CAS 402848-76-4C12H10N2O3S

MW 262.28

IN STOCKRS-N164001
Nitazoxanide Impurity 2

CAS 952686-58-7C19H13N3O7S

MW 427.39

IN STOCKRS-N164002
Nitazoxanide Impurity 4(SU 3327)

CAS 40045-50-9C5H3N5O2S3

MW 261.29

IN STOCKRS-N164003

9 reference standards

Frequently asked

How many Nitazoxanide-related reference standards do you hold?

9 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 9 of them and 9 entries carry a structure drawing. The catalogue is extended as new lots are released.

Can you supply a Nitazoxanide 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 Nitazoxanide 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 Nitazoxanide 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.