Pharmaceutical Reference Standards / Impurity Standards

Azithromycin Dihydrate
Azithromycin Dihydrate
  • CAT. No.A130000
  • CAS. No.117772-70-0
  • Mol. F.C38H72N2O12.2H2O
  • Mol. W.785.02 g/mol
  • Stock Status:Instock
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Azithromycin
Azithromycin
  • CAT. No.A130000A
  • CAS. No.83905-01-5
  • Mol. F.C38H72N2O12
  • Mol. W.748.98 g/mol
  • Stock Status:Instock
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Azithromycin EP Impurity A
Azithromycin EP Impurity A
  • CAT. No.A130001
  • CAS. No.76801-85-9
  • Mol. F.C37H70N2O12
  • Mol. W.734.96 g/mol
  • Stock Status:Instock
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Azithromycin EP Impurity B
Azithromycin EP Impurity B
  • CAT. No.A130002
  • CAS. No.307974-61-4
  • Mol. F.C38H72N2O11
  • Mol. W.732.99 g/mol
  • Stock Status:Under Synthesis
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Azithromycin EP Impurity C
Azithromycin EP Impurity C
  • CAT. No.A130003
  • CAS. No.620169-47-3
  • Mol. F.C37H70N2O12
  • Mol. W.734.96 g/mol
  • Stock Status:Under Synthesis
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Azithromycin EP Impurity D
Azithromycin EP Impurity D
  • CAT. No.A130004
  • CAS. No.612069-26-8
  • Mol. F.C38H72N2O13
  • Mol. W.764.98 g/mol
  • Stock Status:Limited Stock
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Azithromycin EP Impurity E
Azithromycin EP Impurity E
  • CAT. No.A130005
  • CAS. No.612069-27-9
  • Mol. F.C36H68N2O12
  • Mol. W.720.93 g/mol
  • Stock Status:Instock
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Azithromycin EP Impurity F
Azithromycin EP Impurity F
  • CAT. No.A130006
  • CAS. No.612069-28-0
  • Mol. F.C38H70N2O13
  • Mol. W.762.97 g/mol
  • Stock Status:Instock
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Azithromycin EP Impurity G
Azithromycin EP Impurity G
  • CAT. No.A130007
  • CAS. No.612069-31-5
  • Mol. F.C44H76N2O14S
  • Mol. W.889.15 g/mol
  • Stock Status:Instock
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Azithromycin EP Impurity H
Azithromycin EP Impurity H
  • CAT. No.A130008
  • CAS. No.612069-30-4
  • Mol. F.C45H77N3O15S
  • Mol. W.932.17 g/mol
  • Stock Status:Instock
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Azithromycin EP Impurity I
Azithromycin EP Impurity I
  • CAT. No.A130009
  • CAS. No.172617-84-4
  • Mol. F.C37H70N2O12
  • Mol. W.734.96 g/mol
  • Stock Status:Instock
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Azithromycin EP Impurity J
Azithromycin EP Impurity J
  • CAT. No.A130010
  • CAS. No.117693-41-1
  • Mol. F.C30H58N2O9
  • Mol. W.590.78 g/mol
  • Stock Status:Instock
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Azithromycin EP Impurity L
Azithromycin EP Impurity L
  • CAT. No.A130011
  • CAS. No.90503-06-3
  • Mol. F.C38H72N2O13
  • Mol. W.764.98 g/mol
  • Stock Status:Instock
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Azithromycin EP Impurity M
Azithromycin EP Impurity M
  • CAT. No.A130012
  • CAS. No.765927-71-7
  • Mol. F.C37H68N2O13
  • Mol. W.748.94 g/mol
  • Stock Status:Instock
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Azithromycin EP Impurity N
Azithromycin EP Impurity N
  • CAT. No.A130013
  • CAS. No.612069-25-7
  • Mol. F.C36H65NO13
  • Mol. W.719.90 g/mol
  • Stock Status:Instock
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Azithromycin EP Impurity O
Azithromycin EP Impurity O
  • CAT. No.A130014
  • CAS. No.763924-54-5
  • Mol. F.C39H74N2O12
  • Mol. W.763.01 g/mol
  • Stock Status:Limited Stock
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N-Formyl-N-Dimethyl Impurity
N-Formyl-N-Dimethyl Impurity
  • CAT. No.A130015
  • CAS. No.NA
  • Mol. F.NA
  • Mol. W.NA
  • Stock Status:Custom Synthesis
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Azithromycin EP Impurity S
Azithromycin EP Impurity S
  • CAT. No.A130016
  • CAS. No.NA
  • Mol. F.C37H66N2O12
  • Mol. W.730.93 g/mol
  • Stock Status:Custom Synthesis
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Azithromycin N-Ethyl Analog
Azithromycin N-Ethyl Analog
  • CAT. No.A130017
  • CAS. No.92594-45-1
  • Mol. F.C39H74N2O12
  • Mol. W.763.00 g/mol
  • Stock Status:Instock
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Atorvastatin Diketo Amide Impurity
Atorvastatin Diketo Amide Impurity
  • CAT. No.A130021
  • CAS. No.125971-96-2
  • Mol. F.C26H24FNO3
  • Mol. W.417.47 g/mol
  • Stock Status:Instock
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Azithromycin EP Impurity K
Azithromycin EP Impurity K
  • CAT. No.A130024
  • CAS. No.612534-95-9
  • Mol. F.C38H70N2O13
  • Mol. W.762.97 g/mol
  • Stock Status:Custom Synthesis
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Azithromycin EP Impurity Q
Azithromycin EP Impurity Q
  • CAT. No.A130026
  • CAS. No.2095879-65-3
  • Mol. F.C44H75N3O15S
  • Mol. W.918.15 g/mol
  • Stock Status:Instock
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3-Hydroxy Azithromycinoic Acid Sodium
3-Hydroxy Azithromycinoic Acid Sodium
  • CAT. No.A130027
  • CAS. No.2365312-76-9 (free base)
  • Mol. F.C30H59N2O10.Na
  • Mol. W.630.81 g/mol
  • Stock Status:Instock
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Azithromycin N-Ethyl
Azithromycin N-Ethyl
  • CAT. No.A130028
  • CAS. No.92594-45-1
  • Mol. F.C39H74N2O12
  • Mol. W.763.01 g/mol
  • Stock Status:Custom Synthesis
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5,10,15,20-Tetraphenyl-21h,23h-porphine iron(iii) chloride
5,10,15,20-Tetraphenyl-21h,23h-porphine iron(iii) chloride
  • CAT. No.A130029
  • CAS. No.16456-81-8
  • Mol. F.C44H28ClFeN4
  • Mol. W.704.03 g/mol
  • Stock Status:Custom Synthesis
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4``-keto-9a-azithromycin
4``-keto-9a-azithromycin
  • CAT. No.A130030
  • CAS. No.92395-24-9
  • Mol. F.C38H70N2O12
  • Mol. W.746.97 g/mol
  • Stock Status:Custom Synthesis
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Azithromycin Impurity 3 Sodium
Azithromycin Impurity 3 Sodium
  • CAT. No.A130031
  • CAS. No.NA
  • Mol. F.C38H73N2O13.Na
  • Mol. W.788.98 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso Azithromycin EP Impurity A
N-Nitroso Azithromycin EP Impurity A
  • CAT. No.A130032
  • CAS. No.NA
  • Mol. F.C37H69N3O13
  • Mol. W.763.96 g/mol
  • Stock Status:Instock
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N-Nitroso Azithromycin EP Impurity I
N-Nitroso Azithromycin EP Impurity I
  • CAT. No.A130033
  • CAS. No.NA
  • Mol. F.C37H69N3O13
  • Mol. W.763.96 g/mol
  • Stock Status:Instock
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3-Hydroxy Azithromycinoic Acid
3-Hydroxy Azithromycinoic Acid
  • CAT. No.A130034
  • CAS. No.NA
  • Mol. F.C30H60N2O10
  • Mol. W.608.80 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso Azithromycin EP Impurity M
N-Nitroso Azithromycin EP Impurity M
  • CAT. No.A130037
  • CAS. No.NA
  • Mol. F.C37H67N3O14
  • Mol. W.777.94 g/mol
  • Stock Status:Custom Synthesis
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N-Desmethyl Azithromycin B
N-Desmethyl Azithromycin B
  • CAT. No.A130039
  • CAS. No.857078-26-3
  • Mol. F.C37H70N2O11
  • Mol. W.1243.48 g/mol
  • Stock Status:Custom Synthesis
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Azithromycin Impurity 4
Azithromycin Impurity 4
  • CAT. No.A130040
  • CAS. No.620169-48-4
  • Mol. F.C36H68N2O12
  • Mol. W.720.93 g/mol
  • Stock Status:Custom Synthesis
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Azaerythromycin C
Azaerythromycin C
  • CAT. No.A130041
  • CAS. No.NA
  • Mol. F.C36H68N2O12
  • Mol. W.720.94 g/mol
  • Stock Status:Custom Synthesis
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Azithromycin Impurity 2
Azithromycin Impurity 2
  • CAT. No.A130043
  • CAS. No.NA
  • Mol. F.C38H74N2O13
  • Mol. W.767 g/mol
  • Stock Status:Custom Synthesis
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Azithromycin Impurity 1
Azithromycin Impurity 1
  • CAT. No.A130044
  • CAS. No.905845-82-1
  • Mol. F.C37H70N2O13
  • Mol. W.750.97 g/mol
  • Stock Status:Custom Synthesis
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Metabolites

Descladinose 6-N-Desmethyl Azithromycin
Descladinose 6-N-Desmethyl Azithromycin
  • CAT. No.A130036
  • CAS. No.111247-94-0
  • Mol. F.C29H56N2O9
  • Mol. W.576.76 g/mol
  • Stock Status:Custom Synthesis
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Isotope Labelled Compounds

Azithromycin-13C-D3
Azithromycin-13C-D3
  • CAT. No.A130022
  • CAS. No.NA
  • Mol. F.C3713CH69D3N2O12
  • Mol. W.753.00 g/mol
  • Stock Status:Instock
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Azithromycin D3
Azithromycin D3
  • CAT. No.A130023
  • CAS. No.163921-65-1
  • Mol. F.C38H69D3N2O12
  • Mol. W.752.00 g/mol
  • Stock Status:Instock
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Azithromycin-D5
Azithromycin-D5
  • CAT. No.A130038
  • CAS. No.NA
  • Mol. F.C38H67D5N2O12
  • Mol. W.754.02 g/mol
  • Stock Status:Custom Synthesis
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