Ceftazidime Related Compounds & Impurities

Ceftazidime is a third-generation parenteral cephalosporin with potent antipseudomonal activity, frequently combined with avibactam.

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 Ceftazidime reference standards, pharmacopeial and non-pharmacopeial Ceftazidime 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 Ceftazidime-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.

Pharmaceutical Reference Standards / Impurity Standards

Ceftazidime Pentahydrate
Ceftazidime Pentahydrate
  • CAT. No.C420000
  • CAS. No.78439-06-2
  • Mol. F.C22H32N6O12S2
  • Mol. W.636.65 g/mol
  • Stock Status:Instock
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Ceftazidime
Ceftazidime
  • CAT. No.C420000A
  • CAS. No.72558-82-8
  • Mol. F.C22H22N6O7S2
  • Mol. W.546.57 g/mol
  • Stock Status:Instock
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Ceftazidime Pentahydrate
Ceftazidime Pentahydrate
  • CAT. No.C420000B
  • CAS. No.78439-06-2
  • Mol. F.C22H22N6O7S25H2O
  • Mol. W.636.65 g/mol
  • Stock Status:Under Synthesis
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Ceftazidime Dihydrochloride
Ceftazidime Dihydrochloride
  • CAT. No.C420000C
  • CAS. No.73547-70-3
  • Mol. F.C22H22N6O7S22HCl
  • Mol. W.619.51 g/mol
  • Stock Status:Custom Synthesis
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Ceftazidime EP Impurity A
Ceftazidime EP Impurity A
  • CAT. No.C420001
  • CAS. No.1000980-60-8
  • Mol. F.C22H22N6O7S2
  • Mol. W.546.58 g/mol
  • Stock Status:Instock
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Ceftazidime,Delta-3-Isomer
Ceftazidime,Delta-3-Isomer
  • CAT. No.C420003
  • CAS. No.NA
  • Mol. F.C22H22N6O7S2
  • Mol. W.546.58 g/mol
  • Stock Status:Custom Synthesis
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Ceftazidime EP Impurity G
Ceftazidime EP Impurity G
  • CAT. No.C420005
  • CAS. No.194241-83-3
  • Mol. F.C11H14N4O5S
  • Mol. W.314.32 g/mol
  • Stock Status:Under Synthesis
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Ceftazidime Impurity G Trifluoro acetic acid salt
Ceftazidime Impurity G Trifluoro acetic acid salt
  • CAT. No.C420005A
  • CAS. No.194241-83-3(Free Base)
  • Mol. F.C13H15F3N4O7S
  • Mol. W.428.34 g/mol
  • Stock Status:Under Synthesis
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Ceftazidime EP Impurity B
Ceftazidime EP Impurity B
  • CAT. No.C420006
  • CAS. No.97148-38-4
  • Mol. F.C22H22N6O7S2
  • Mol. W.546.58 g/mol
  • Stock Status:Instock
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Ceftazidime Pentahydrate EP Impurity C
Ceftazidime Pentahydrate EP Impurity C
  • CAT. No.C420007
  • CAS. No.3432-88-0
  • Mol. F.C13H13N3O3S
  • Mol. W.291.33 g/mol
  • Stock Status:Instock
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Ceftazidime Impurity C Hydroiodide
Ceftazidime Impurity C Hydroiodide
  • CAT. No.C420007A
  • CAS. No.NA
  • Mol. F.C13H13N3O3S.HI
  • Mol. W.419.24 g/mol
  • Stock Status:Custom Synthesis
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Ceftazidime EP Impurity E
Ceftazidime EP Impurity E
  • CAT. No.C420008
  • CAS. No.102772-66-7
  • Mol. F.C26H30N6O7S2
  • Mol. W.602.68 g/mol
  • Stock Status:Instock
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Ceftazidime EP Impurity H
Ceftazidime EP Impurity H
  • CAT. No.C420009
  • CAS. No.1354396-23-8
  • Mol. F.C23H24N6O7S2
  • Mol. W.560.60 g/mol
  • Stock Status:Instock
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Acetoxy Ceftazidime Dimer
Acetoxy Ceftazidime Dimer
  • CAT. No.C420010
  • CAS. No.NA
  • Mol. F.C29H31N7O13S3
  • Mol. W.781.79 g/mol
  • Stock Status:Custom Synthesis
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(6R,7R)-3-(acetoxymethyl)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(((1-(tert-butoxy)-2-methyl-1-oxopropan-2-yl)oxy)imino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
(6R,7R)-3-(acetoxymethyl)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(((1-(tert-butoxy)-2-methyl-1-oxopropan-2-yl)oxy)imino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
  • CAT. No.C420011
  • CAS. No.NA
  • Mol. F.C23H29N5O9S2
  • Mol. W.583.63 g/mol
  • Stock Status:Custom Synthesis
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Ceftazidime EP Impurity C Chloride
Ceftazidime EP Impurity C Chloride
  • CAT. No.C420012
  • CAS. No.78931-25-6
  • Mol. F.C13H14ClN3O3S
  • Mol. W.327.79 g/mol
  • Stock Status:Custom Synthesis
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Ceftazidime EP Impurity C Iodide
Ceftazidime EP Impurity C Iodide
  • CAT. No.C420013
  • CAS. No.100988-63-4
  • Mol. F.C13H14IN3O3S
  • Mol. W.419.24 g/mol
  • Stock Status:Custom Synthesis
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Ceftazidime EP Impurity C
Ceftazidime EP Impurity C
  • CAT. No.C420014
  • CAS. No.41360-25-2
  • Mol. F.C13H14N3O3S
  • Mol. W.292.34 g/mol
  • Stock Status:Custom Synthesis
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Ceftazidime Impurity 1
Ceftazidime Impurity 1
  • CAT. No.C420015
  • CAS. No.86299-47-0
  • Mol. F.C13H19N3O5S
  • Mol. W.329.37 g/mol
  • Stock Status:Custom Synthesis
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Ceftazidime Impurity 2
Ceftazidime Impurity 2
  • CAT. No.C420016
  • CAS. No.158183-05-2
  • Mol. F.C20H22N4O4S3
  • Mol. W.478.60 g/mol
  • Stock Status:Custom Synthesis
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(6R,7R)-7-((E)-2-(2-aminothiazol-4-yl)-2-(((2-carboxypropan-2-yl)oxy)imino)acetamido)-8-oxo-3-(pyridin-1-ium-1-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
(6R,7R)-7-((E)-2-(2-aminothiazol-4-yl)-2-(((2-carboxypropan-2-yl)oxy)imino)acetamido)-8-oxo-3-(pyridin-1-ium-1-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
  • CAT. No.C420017
  • CAS. No.NA
  • Mol. F.C22H22N6O7S2
  • Mol. W.546.58 g/mol
  • Stock Status:Custom Synthesis
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Ceftazidime 7-Epimer
Ceftazidime 7-Epimer
  • CAT. No.C420018
  • CAS. No.2630911-86-1
  • Mol. F.C22H22N6O7S2
  • Mol. W.546.60 g/mol
  • Stock Status:Limited Stock
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Formyl Ceftazidine
Formyl Ceftazidine
  • CAT. No.C420019
  • CAS. No.1301254-49-8
  • Mol. F.C23H22N6O8S2
  • Mol. W.574.59 g/mol
  • Stock Status:Instock
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Ceftazidime Impurity 27
Ceftazidime Impurity 27
  • CAT. No.C420021
  • CAS. No.64513-00-4
  • Mol. F.C7H9N3O3S
  • Mol. W.215.23 g/mol
  • Stock Status:Custom Synthesis
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Ceftazidime Impurity G hydrochloride
Ceftazidime Impurity G hydrochloride
  • CAT. No.C420022
  • CAS. No.NA
  • Mol. F.C11H14N4O5S.HCl
  • Mol. W.350.78 g/mol
  • Stock Status:Custom Synthesis
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Ceftazidime EP Impurity C Dichloride
Ceftazidime EP Impurity C Dichloride
  • CAT. No.C420023
  • CAS. No.NA
  • Mol. F.C13H15N3O3S.2Cl
  • Mol. W.364.25 g/mol
  • Stock Status:Custom Synthesis
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1-Nitroso Pyridinium
1-Nitroso Pyridinium
  • CAT. No.C420024
  • CAS. No.45590-75-8
  • Mol. F.C5H5N2O
  • Mol. W.109.11 g/mol
  • Stock Status:Custom Synthesis
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Ceftazidime Impurity 3
Ceftazidime Impurity 3
  • CAT. No.C420025
  • CAS. No.NA
  • Mol. F.C30H34ClN7O11S2
  • Mol. W.768.21 g/mol
  • Stock Status:Custom Synthesis
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Ceftazidime Impurity 4
Ceftazidime Impurity 4
  • CAT. No.C420026
  • CAS. No.NA
  • Mol. F.C30H34ClN7O10S2
  • Mol. W.752.21 g/mol
  • Stock Status:Custom Synthesis
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Ceftazidime Impurity 5
Ceftazidime Impurity 5
  • CAT. No.C420027
  • CAS. No.2489663-67-2
  • Mol. F.C13H17ClN2O3
  • Mol. W.284.74 g/mol
  • Stock Status:Custom Synthesis
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Ceftazidime Impurity 6
Ceftazidime Impurity 6
  • CAT. No.C420028
  • CAS. No.NA
  • Mol. F.C30H34ClN7O10S2
  • Mol. W.752.21 g/mol
  • Stock Status:Custom Synthesis
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Ceftazidime Impurity 7
Ceftazidime Impurity 7
  • CAT. No.C420029
  • CAS. No.NA
  • Mol. F.C47H53ClN12O18S4
  • Mol. W.1237.71 g/mol
  • Stock Status:Custom Synthesis
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Isotope Labelled Compounds

Ceftazidime D6 Sodium
Ceftazidime D6 Sodium
  • CAT. No.C420020
  • CAS. No.NA
  • Mol. F.C22H15D6N6O7S2.Na
  • Mol. W.574.59 g/mol
  • Stock Status:Custom Synthesis
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