Pharmaceutical Reference Standards / Impurity Standards

Caffeine
Caffeine
  • CAT. No.C310000
  • CAS. No.58-08-2
  • Mol. F.C8H10N4O2
  • Mol. W.194.19 g/mol
  • Stock Status:Instock
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Caffeine Anhydrous Reference Standard
Caffeine Anhydrous Reference Standard
  • CAT. No.C310000A
  • CAS. No.58-08-2
  • Mol. F.C8H10N4O2
  • Mol. W.194.19 g/mol
  • Stock Status:Instock
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Caffeine EP Impurity F
Caffeine EP Impurity F
  • CAT. No.C310001
  • CAS. No.611-59-6
  • Mol. F.C7H8N4O2
  • Mol. W.180.16 g/mol
  • Stock Status:Instock
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Caffeine EP Impurity E
Caffeine EP Impurity E
  • CAT. No.C310003
  • CAS. No.20041-90-1
  • Mol. F.C7H12N4O
  • Mol. W.168.20 g/mol
  • Stock Status:Instock
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Caffeidine Nitrate Impurity
Caffeidine Nitrate Impurity
  • CAT. No.C310003A
  • CAS. No.209725-34-8
  • Mol. F.C7H13N5O4
  • Mol. W.231.21 g/mol
  • Stock Status:Instock
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Caffeine EP Impurity E Hydrochloride
Caffeine EP Impurity E Hydrochloride
  • CAT. No.C310003B
  • CAS. No.107605-95-8
  • Mol. F.C7H13ClN4O
  • Mol. W.204.66 g/mol
  • Stock Status:Instock
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Caffeine EP Impurity C
Caffeine EP Impurity C
  • CAT. No.C310005
  • CAS. No.519-32-4
  • Mol. F.C8H10N4O2
  • Mol. W.194.19 g/mol
  • Stock Status:Instock
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1,3-Dimethyluric Acid
1,3-Dimethyluric Acid
  • CAT. No.C310006
  • CAS. No.944-73-0
  • Mol. F.C7H8N4O3
  • Mol. W.196.16 g/mol
  • Stock Status:Instock
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Caffeine Impurity 8
Caffeine Impurity 8
  • CAT. No.C310007
  • CAS. No.33130-55-1
  • Mol. F.C8H12N4O3
  • Mol. W.212.21 g/mol
  • Stock Status:Custom Synthesis
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N-(6-Amino-3-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)acetamide
N-(6-Amino-3-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)acetamide
  • CAT. No.C310008
  • CAS. No.19893-78-8
  • Mol. F.C7H10N4O3
  • Mol. W.198.18 g/mol
  • Stock Status:Custom Synthesis
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6-Amino-5-(N-formyl-N-methyl)-3-methyluracil
6-Amino-5-(N-formyl-N-methyl)-3-methyluracil
  • CAT. No.C310009
  • CAS. No.55782-76-8
  • Mol. F.C7H10N4O3
  • Mol. W.198.18 g/mol
  • Stock Status:Custom Synthesis
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4-Amino-1,3-dimethyl-2,6-dioxy-5-nitrosopyrimidine
4-Amino-1,3-dimethyl-2,6-dioxy-5-nitrosopyrimidine
  • CAT. No.C310010
  • CAS. No.6632-68-4
  • Mol. F.C6H8N4O3
  • Mol. W.184.15 g/mol
  • Stock Status:Limited Stock
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Caffeine Citrate
Caffeine Citrate
  • CAT. No.C310015
  • CAS. No.69-22-7
  • Mol. F.C14H18N4O9
  • Mol. W.386.32 g/mol
  • Stock Status:Custom Synthesis
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N1-Methylguanosine
N1-Methylguanosine
  • CAT. No.C310016
  • CAS. No.2140-65-0
  • Mol. F.C11H15N5O5
  • Mol. W.297.27 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso Caffeine Impurity 1
N-Nitroso Caffeine Impurity 1
  • CAT. No.C310017
  • CAS. No.NA
  • Mol. F.C7H7N5O3
  • Mol. W.209.16 g/mol
  • Stock Status:Custom Synthesis
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Mononitroso Caffeidine
Mononitroso Caffeidine
  • CAT. No.C310018
  • CAS. No.145438-96-6
  • Mol. F.C7H11N5O2
  • Mol. W.197.20 g/mol
  • Stock Status:Custom Synthesis
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Dinitroso Caffeidine
Dinitroso Caffeidine
  • CAT. No.C310019
  • CAS. No.145438-97-7
  • Mol. F.C7H10N6O3
  • Mol. W.226.20 g/mol
  • Stock Status:Custom Synthesis
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Caffeine Impurity 4 Sodium Salt
Caffeine Impurity 4 Sodium Salt
  • CAT. No.C310020
  • CAS. No.NA
  • Mol. F.C8H11N4O3.Na
  • Mol. W.234.19 g/mol
  • Stock Status:Custom Synthesis
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Metabolites

Methylliberine
Methylliberine
  • CAT. No.C310014
  • CAS. No.51168-26-4
  • Mol. F.C9H12N4O3
  • Mol. W.224.22 g/mol
  • Stock Status:Custom Synthesis
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Isotope Labelled Compounds

Caffeine-D3
Caffeine-D3
  • CAT. No.C310002
  • CAS. No.26351-04-2
  • Mol. F.C8H7D3N4O2
  • Mol. W.197.21 g/mol
  • Stock Status:Instock
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Paraxanthine-d6
Paraxanthine-d6
  • CAT. No.C310011
  • CAS. No.117490-41-2
  • Mol. F.C7H2D6N4O2
  • Mol. W.186.20 g/mol
  • Stock Status:Custom Synthesis
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Paraxanthine-D3
Paraxanthine-D3
  • CAT. No.C310012
  • CAS. No.65566-70-3
  • Mol. F.C7H5D3N4O2
  • Mol. W.183.18 g/mol
  • Stock Status:Instock
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Caffeine-Trimethyl-13C3
Caffeine-Trimethyl-13C3
  • CAT. No.C310013
  • CAS. No.78072-66-9
  • Mol. F.C513C3H10N4O2
  • Mol. W.197.15 g/mol
  • Stock Status:Under Synthesis
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