Clarithromycin

Clarithromycin is a semi-synthetic macrolide antibiotic that inhibits bacterial 50S ribosomal protein synthesis, widely used for respiratory tract infections, H. pylori eradication combination regimens and atypical mycobacterial disease. Simson Pharma's Clarithromycin reference standard and impurities support the high-volume compendial testing this major macrolide antibiotic demands.

Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) supply high-quality Clarithromycin 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

Clarithromycin
Clarithromycin
  • CAT. No.C460000
  • CAS. No.81103-11-9
  • Mol. F.C38H69NO13
  • Mol. W.747.95 g/mol
  • Stock Status:Instock
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Clarithromycin EP Impurity C
Clarithromycin EP Impurity C
  • CAT. No.C460001
  • CAS. No.127253-06-9
  • Mol. F.C38H70N2O13
  • Mol. W.762.97 g/mol
  • Stock Status:Instock
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Clarithromycin 9-Oxime
Clarithromycin 9-Oxime
  • CAT. No.C460001A
  • CAS. No.103450-87-9
  • Mol. F.C38H70N2O13
  • Mol. W.762.97 g/mol
  • Stock Status:Instock
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Clarithromycin EP Impurity D
Clarithromycin EP Impurity D
  • CAT. No.C460002
  • CAS. No.101666-68-6
  • Mol. F.C37H67NO13
  • Mol. W.733.93 g/mol
  • Stock Status:Instock
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Clarithromycin EP Impurity E
Clarithromycin EP Impurity E
  • CAT. No.C460003
  • CAS. No.81103-14-2
  • Mol. F.C39H71NO13
  • Mol. W.761.98 g/mol
  • Stock Status:Instock
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Clarithromycin EP Impurity H
Clarithromycin EP Impurity H
  • CAT. No.C460004
  • CAS. No.127140-69-6
  • Mol. F.C38H67NO14
  • Mol. W.761.94 g/mol
  • Stock Status:Instock
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Clarithromycin EP Impurity I
Clarithromycin EP Impurity I
  • CAT. No.C460005
  • CAS. No.118058-74-5
  • Mol. F.C30H55NO10
  • Mol. W.589.76 g/mol
  • Stock Status:Instock
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Clarithromycin EP Impurity L
Clarithromycin EP Impurity L
  • CAT. No.C460006
  • CAS. No.127253-05-8
  • Mol. F.C38H70N2O13
  • Mol. W.762.99 g/mol
  • Stock Status:Instock
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Clarithromycin EP Impurity M
Clarithromycin EP Impurity M
  • CAT. No.C460007
  • CAS. No.127182-43-8
  • Mol. F.C37H68N2O13
  • Mol. W.748.94 g/mol
  • Stock Status:Instock
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Clarithromycin EP Impurity N
Clarithromycin EP Impurity N
  • CAT. No.C460008
  • CAS. No.144604-03-5
  • Mol. F.C38H67NO12
  • Mol. W.729.94 g/mol
  • Stock Status:Instock
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Clarithromycin EP Impurity K
Clarithromycin EP Impurity K
  • CAT. No.C460010
  • CAS. No.127157-35-1
  • Mol. F.C30H51NO8
  • Mol. W.553.73 g/mol
  • Stock Status:Instock
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Clarithromycin EP Impurity O
Clarithromycin EP Impurity O
  • CAT. No.C460011
  • CAS. No.127252-80-6
  • Mol. F.C39H72N2O13
  • Mol. W.777.01 g/mol
  • Stock Status:Under Synthesis
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Clarithromycin EP Impurity G
Clarithromycin EP Impurity G
  • CAT. No.C460012
  • CAS. No.127182-44-9
  • Mol. F.C39H72N2O13
  • Mol. W.776.99 g/mol
  • Stock Status:Instock
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Clarithromycin Mixture of Impurity O & Impurity G
Clarithromycin Mixture of Impurity O & Impurity G
  • CAT. No.C460017
  • CAS. No.NA
  • Mol. F.C39H72N2O13
  • Mol. W.776.99 g/mol
  • Stock Status:Instock
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Clarithromycin EP Impurity A
Clarithromycin EP Impurity A
  • CAT. No.C460018
  • CAS. No.124412-58-4
  • Mol. F.C38H69NO14
  • Mol. W.763.95 g/mol
  • Stock Status:Under Synthesis
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Clarithromycin EP Impurity B
Clarithromycin EP Impurity B
  • CAT. No.C460019
  • CAS. No.299409-85-1
  • Mol. F.C37H67NO13
  • Mol. W.733.93 g/mol
  • Stock Status:Under Synthesis
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Clarithromycin EP Impurity F
Clarithromycin EP Impurity F
  • CAT. No.C460020
  • CAS. No.128940-83-0
  • Mol. F.C39H71NO13
  • Mol. W.761.98 g/mol
  • Stock Status:Limited Stock
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Clarithromycin EP Impurity P
Clarithromycin EP Impurity P
  • CAT. No.C460021
  • CAS. No.123967-58-8
  • Mol. F.C39H71NO13
  • Mol. W.761.98 g/mol
  • Stock Status:Under Synthesis
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Clarithromycin EP Impurity Q
Clarithromycin EP Impurity Q
  • CAT. No.C460022
  • CAS. No.118074-07-0
  • Mol. F.C38H69NO14
  • Mol. W.763.95 g/mol
  • Stock Status:Instock
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Clarithromycin Impurity 1
Clarithromycin Impurity 1
  • CAT. No.C460024
  • CAS. No.2376120-29-3
  • Mol. F.C22H40O8
  • Mol. W.432.55 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso-N-Desmethyl-Clarithromycin
N-Nitroso-N-Desmethyl-Clarithromycin
  • CAT. No.C460025
  • CAS. No.NA
  • Mol. F.C37H66N2O14
  • Mol. W.762.92 g/mol
  • Stock Status:Instock
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Clarithromycin EP Impurity J
Clarithromycin EP Impurity J
  • CAT. No.C460026
  • CAS. No.13127-18-9
  • Mol. F.C37H68N2O13
  • Mol. W.748.94 g/mol
  • Stock Status:Custom Synthesis
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Clarithromycin EP Impurity R
Clarithromycin EP Impurity R
  • CAT. No.C460027
  • CAS. No.992-62-1
  • Mol. F.C36H65NO13
  • Mol. W.719.90 g/mol
  • Stock Status:Custom Synthesis
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Clarithromycin Impurity 3
Clarithromycin Impurity 3
  • CAT. No.C460028
  • CAS. No.NA
  • Mol. F.C38H67NO14
  • Mol. W.761.94 g/mol
  • Stock Status:Custom Synthesis
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6-O-Methylerythromycin A 9-(E)-O-(1-isopropoxycyclohexyl)-oxime
6-O-Methylerythromycin A 9-(E)-O-(1-isopropoxycyclohexyl)-oxime
  • CAT. No.C460030
  • CAS. No.156715-14-9
  • Mol. F.C47H86N2O14
  • Mol. W.903.19 g/mol
  • Stock Status:Custom Synthesis
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Clarithromycin form II
Clarithromycin form II
  • CAT. No.C460031
  • CAS. No.81103-11-9
  • Mol. F.C38H69NO13
  • Mol. W.747.95 g/mol
  • Stock Status:Instock
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14(S)-Hydroxy Clarithromycin
14(S)-Hydroxy Clarithromycin
  • CAT. No.C460033
  • CAS. No.116836-40-9
  • Mol. F.C38H69NO14
  • Mol. W.763.95 g/mol
  • Stock Status:Custom Synthesis
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Metabolites

(14R)-14-Hydroxy Clarithromycin
(14R)-14-Hydroxy Clarithromycin
  • CAT. No.C460023
  • CAS. No.116836-41-0
  • Mol. F.C38H69NO14
  • Mol. W.763.95 g/mol
  • Stock Status:Instock
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Isotope Labelled Compounds

Clarithromycin-13C-D3
Clarithromycin-13C-D3
  • CAT. No.C460016
  • CAS. No.NA
  • Mol. F.C3713CH66D3NO13
  • Mol. W.751.96 g/mol
  • Stock Status:Under Synthesis
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Clarithromycin D3
Clarithromycin D3
  • CAT. No.C460029
  • CAS. No.81103-11-9 (Unlabelled)
  • Mol. F.C38H66D3NO13
  • Mol. W.750.97 g/mol
  • Stock Status:Custom Synthesis
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N-nitroso desmethyl Clarithromycin 13CD3
N-nitroso desmethyl Clarithromycin 13CD3
  • CAT. No.C460032
  • CAS. No.NA
  • Mol. F.C3613CH63D3N2O14
  • Mol. W.766.94 g/mol
  • Stock Status:Please Enquire
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