Impurity reference standards
Ceftiofur impurity standards
This page brings together 12 Ceftiofur related compounds that analytical teams use to identify, quantify and control impurities in the active ingredient and the finished dosage form. The range includes 1 degradation product.
12reference materials
1degradants
Batches are supplied with a certificate of analysis, and the supporting spectra can be sent ahead of a purchase order so your QA team can review them. They are bought for system suitability, peak identification, quantitation against limits and the impurity justification sections of regulatory submissions.
By impurity type
Degradants1N-oxides, dimers, lactones and breakdown products
Counts are based on product names. One compound can fall into more than one type.
All Ceftiofur reference materials
1–12 of 12 standards
(Z)-2-(2-Aminothiazol-4-yl)-N-((5aR,6R)-1,7-dioxo-1,4,5a,6-tetrahydro-3H,7H-azeto[2,1-b]thieno[3,4-d][1,3]thiazin-6-yl)-2-(methoxyimino)acetamide
- CAS
- 120882-23-7
- Formula
- C14H13N5O4S3
- MW
- 411.5 g/mol
ZX-021146
(Z)-2-(2-Tritylaminothiazol-4-yl)-2-methoxyiminoacetic Acid
- CAS
- 64485-90-1
- Formula
- C25H21N3O3S
- MW
- 443.5 g/mol
ZX-023856
Questions
Ceftiofur impurities, answered
What Ceftiofur reference materials are available?
The catalogue currently lists 12 compounds for Ceftiofur, including 1 degradation product. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.
What documents come with a Ceftiofur impurity standard?
A certificate of analysis travels with every lot. On request we share the characterisation set, usually 1H-NMR, mass spectrum, HPLC purity and IR, and for some materials TGA or water content. Ask for the data before ordering if your QA team needs to review it.
Can Zemixal make a Ceftiofur impurity that is not listed?
Often yes. Send the structure, name or CAS number with the quantity you need and our sourcing team checks custom synthesis options, usually from 10 mg up to gram scale, with a quoted lead time.