Ceftazidime

Ceftazidime is a third-generation parenteral cephalosporin with potent antipseudomonal activity, used for severe Gram-negative infections and frequently combined with avibactam to extend activity against resistant organisms. Simson Pharma's Ceftazidime reference standard and impurities support the demanding QC this critical-care antibiotic requires.

Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) supply high-quality Ceftazidime Reference Standards, pharmacopoeial reference materials, and its related impurities to pharmaceutical manufacturers, CROs, analytical laboratories, universities, and regulatory organizations worldwide. To service the Europe and America market efficiently, Simson Pharma Limited has set up Simson Pharma Global Ltd. in United Kingdom and Simson Pharma Global LLC in USA respectively.

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:Under Synthesis
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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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