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Cefixime Related Compounds & Impurities

Cefixime is an oral third-generation cephalosporin with strong Gram-negative activity, widely used for respiratory, urinary and gonococcal infections.

Simson Pharma Limited along with its subsidiary offices Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) is a trusted manufacturer and supplier of high-quality pharmaceutical reference standards, offering a comprehensive portfolio of Cefixime reference standards, pharmacopeial and non-pharmacopeial Cefixime impurities, related compounds, related substances, metabolites, stable isotope-labelled compounds, deuterium labelled compounds and nitrosamine (N-NO) reference standards.

These materials support pharmaceutical research and development, product development, ANDA and DMF submissions, quality control (QC), analytical method development and validation, stability studies, impurity identification, and genotoxic impurity assessment.

Our Cefixime-related reference standards are thoroughly characterized using advanced analytical techniques and are supplied with comprehensive Certificates of Analysis (COA) and supporting analytical data from our USFDA certified, ISO 17025 and ISO 17034 accredited Lab, to meet global regulatory expectations. EP and USP traceable reference standards can also be provided upon request, subject to availability. Simson is also a provider of EP and USP traceable standards. To ensure consistent quality and reliability, our reference standards are periodically re-tested according to established quality management procedures.

Isotope Labelled Compounds

(13C3,15N2)-Cefixime

CAT. No.C320015 CAS No.79350-37-1(Unlabelled) Mol. F.C1313C3H15N315N2O7S2 Mol. W.456.43 g/mol Stock Status Instock
COA MSDS

Impurity Standards

Cefixime EP Impurity A

CAT. No.C320009 CAS No.1614255-90-1 Mol. F.C16H17N5O8S2 Mol. W.471.46 g/mol Stock Status Under Synthesis
COA MSDS

Cefixime EP Impurity B

CAT. No.C320001 CAS No.1335475-19-8 Mol. F.C15H17N5O6S2 Mol. W.427.46 g/mol Stock Status Custom Synthesis
COA MSDS

Cefixime EP Impurity C

CAT. No.C320004 CAS No.108691-83-4 Mol. F.C16H15N5O7S2 Mol. W.453.45 g/mol Stock Status Instock
COA MSDS

Cefixime EP Impurity D

CAT. No.C320002 CAS No.97164-56-2 Mol. F.C16H15N5O7S2 Mol. W.453.45 g/mol Stock Status Limited Stock
COA MSDS

Cefixime EP Impurity E

CAT. No.C320003 CAS No.72701-01-0 Mol. F.C15H15N5O7S2 Mol. W.441.44 g/mol Stock Status Custom Synthesis
COA MSDS

Cefixime EP Impurity F

CAT. No.C320020 CAS No.79368-95-9 Mol. F.C18H19N5O7S2 Mol. W.481.50 g/mol Stock Status Custom Synthesis
COA MSDS

Cefixime Ethyl Ester Sodium Salt

CAT. No.C320007 CAS No.79368-95-9 (free base) Mol. F.C18H18N5NaO7S2 Mol. W.503.48 g/mol Stock Status Custom Synthesis
COA MSDS

Cefixime Impurity 1

CAT. No.C320010 CAS No.80544-17-8 Mol. F.C8H9N3O5S Mol. W.259.24 g/mol Stock Status Custom Synthesis
COA MSDS

Cefixime Impurity 2

CAT. No.C320028 CAS No.NA Mol. F.C8H9N3O5S Mol. W.259.24 g/mol Stock Status Custom Synthesis
COA MSDS

Cefixime Impurity 9

CAT. No.C320027 CAS No.NA Mol. F.C23H20N8O11S3 Mol. W.680.60 g/mol Stock Status Custom Synthesis
COA MSDS

Cefixime Lactone

CAT. No.C320030 CAS No.NA Mol. F.C16H15N5O7S2 Mol. W.453.40 g/mol Stock Status Custom Synthesis
COA MSDS

Cefixime Methyl Ester

CAT. No.C320011 CAS No.88621-01-06 Mol. F.C17H17N5O7S2 Mol. W.467.48 g/mol Stock Status Custom Synthesis
COA MSDS

Cefixime Nitroso Impurity 1

CAT. No.C320024 CAS No.NA Mol. F.C16H14N6O8S2 Mol. W.482.40 g/mol Stock Status Custom Synthesis
COA MSDS

Cefixime Nitroso Impurity 2

CAT. No.C320025 CAS No.NA Mol. F.C16H14N6O8S2 Mol. W.482.40 g/mol Stock Status Custom Synthesis
COA MSDS

Cefixime Sulfone

CAT. No.C320012 CAS No.2682217-22-5 Mol. F.C16H15N5O9S2 Mol. W.485.45 g/mol Stock Status Custom Synthesis
COA MSDS

Cefixime Sulfoxide

CAT. No.C320013 CAS No.1335555-87-7 Mol. F.C16H15N5O8S2 Mol. W.469.45 g/mol Stock Status Custom Synthesis
COA MSDS

Cefixime Tert-Butyl Ester

CAT. No.C320014 CAS No.79368-92-6 Mol. F.C20H23N5O7S2 Mol. W.509.56 g/mol Stock Status Custom Synthesis
COA MSDS

Working Standards

Cefixime

CAT. No.C320000 CAS No.125110-14-7 Mol. F.C16H21N5O10S2 Mol. W.507.50 g/mol Stock Status Instock
COA MSDS

Cefixime

CAT. No.C320018 CAS No.79350-37-1 Mol. F.C16H15N5O7S2 Mol. W.453.45 g/mol Stock Status Custom Synthesis
COA MSDS

Product structure

Sample structure

Catalogue no.: — CAS no.: — Formula: — Mol. weight: —

Illustrative sample structure
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