Carbadox impurities and related standards

Carbadox is held here as a working collection of 13 reference materials across 11 CAS numbers. Within the range, numbered impurities go up to 7. 4 of the entries are impurity-type materials of the parent, 3 carry a deuterium label. 11 entries carry a verified structure drawing, a coverage of 85%. 11 of them sit in tier A or B, meaning the data behind the page is complete enough to be indexed and quoted directly, while 2 remain tier C and are kept for search coverage. Isotopically labelled standards are judged on the distribution rather than on a single purity number, because a material that is 99 per cent pure chemically can still carry a substantial unlabelled fraction, and that fraction is what biases a quantitative assay. 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) - CARBADOX POWDER [PHIBRO ANIMAL HEALTH LTD].

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

In this group: 4 fine chemicals · 3 stable isotope labelled standards · 3 impurity reference standards · 1 multi-component standard. CAS numbers are listed for 11 of 11; 11 entries carry a structure drawing.

On this page

11 reference standards

All entries — structure, identifiers and pack sizes

Carbadox

CAS 6804-07-5C11H10N4O4

MW 262.22

IN STOCKRS-U063395
1-Desoxycarbadox

CAS 118828-83-4C11H10N4O3

MW 246.22

IN STOCKRS-U004782
2-Quinoxalinecarboxylic acid

CAS 879-65-2C9H6N2O2

MW 174.16

IN STOCKRS-M198004
2-Quinoxalinecarboxylic acid-[D4](QCA-[D4])

CAS 2244217-89-6C9H6N2O2

MW 178.18

IN STOCKRS-I128007
4-Desoxycarbadox

CAS 118828-84-5C11H10N4O3

MW 246.22

CUSTOM SYNTHESISRS-U098035
Carbadox-d3

CAS 1185240-06-5C11H10N4O4

MW 265.24

CUSTOM SYNTHESISRS-I098043
Desoxycarbadox

CAS 55456-55-8C11H10N4O2

MW 230.22

IN STOCKRS-U077376
Desoxycarbadox-D3

CAS 1448350-02-4C11H10N4O2

MW 233.24

IN STOCKRS-I097352
Carbadox Impurity 4

CAS 3885-38-9C12H12N2O2

MW 216.24

IN STOCKRS-C669001
Carbadox Impurity 5

CAS 6795-27-3C11H10N4O3

MW 246.23

IN STOCKRS-C669002
Carbadox Impurity 7

CAS 4711-06-2C12H14N2O4

MW 250.25

CUSTOM SYNTHESISRS-C669003

11 reference standards

Frequently asked

How many Carbadox-related reference standards do you hold?

11 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 11 of them and 11 entries carry a structure drawing. The catalogue is extended as new lots are released.

Can you supply a Carbadox 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 Carbadox 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 Carbadox 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.