Pharmaceutical Reference Standards / Impurity Standards

Metformin Hydrochloride
Metformin Hydrochloride
  • CAT. No.M020000
  • CAS. No.1115-70-4
  • Mol. F.C4H11N5.HCl
  • Mol. W.165.62 g/mol
  • Stock Status:Instock
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Metformin Hydrochloride
Metformin Hydrochloride
  • CAT. No.M020000A
  • CAS. No.1115-70-4
  • Mol. F.C4H11N5.HCl
  • Mol. W.165.62 g/mol
  • Stock Status:Instock
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Metformin Hydrochloride -Traceable to IP
Metformin Hydrochloride -Traceable to IP
  • CAT. No.M020000B
  • CAS. No.1115-70-4
  • Mol. F.C4H12N5Cl
  • Mol. W.165.62 g/mol
  • Stock Status:Instock
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Metformin EP Impurity A
Metformin EP Impurity A
  • CAT. No.M020001
  • CAS. No.461-58-5
  • Mol. F.C2H4N4
  • Mol. W.84.10 g/mol
  • Stock Status:Instock
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Metformin
Metformin
  • CAT. No.M020003
  • CAS. No.657-24-9
  • Mol. F.C4H11N5
  • Mol. W.129.16 g/mol
  • Stock Status:Instock
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Metformin EP Impurity D
Metformin EP Impurity D
  • CAT. No.M020004
  • CAS. No.108-78-1
  • Mol. F.C3H6N6
  • Mol. W.126.12 g/mol
  • Stock Status:Instock
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Metformin EP Impurity C
Metformin EP Impurity C
  • CAT. No.M020005
  • CAS. No.1985-46-2
  • Mol. F.C5H10N6
  • Mol. W.154.17 g/mol
  • Stock Status:Instock
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Metformin EP Impurity E sulfate
Metformin EP Impurity E sulfate
  • CAT. No.M020006
  • CAS. No.36801-25-9
  • Mol. F.C3H9N5.H2SO4
  • Mol. W.213.20 g/mol
  • Stock Status:Custom Synthesis
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Metformin EP Impurity E Hydrochloride
Metformin EP Impurity E Hydrochloride
  • CAT. No.M020006A
  • CAS. No.1674-62-0
  • Mol. F.C3H9N5.HCl
  • Mol. W.151.60 g/mol
  • Stock Status:Instock
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Metformin Impurity E
Metformin Impurity E
  • CAT. No.M020006C
  • CAS. No.1609-00-3
  • Mol. F.C3H9N5
  • Mol. W.115.14 g/mol
  • Stock Status:Custom Synthesis
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Metformin EP Impurity B Hydrochloride
Metformin EP Impurity B Hydrochloride
  • CAT. No.M020007
  • CAS. No.2959-04-8
  • Mol. F.C4H8N8.HCl
  • Mol. W.204.62 g/mol
  • Stock Status:Instock
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Metformin EP Impurity B
Metformin EP Impurity B
  • CAT. No.M020007A
  • CAS. No.4405-08-7
  • Mol. F.C4H8N8
  • Mol. W.168.16 g/mol
  • Stock Status:Limited Stock
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Metformin Hydroxy Analog 2 (sulfuiric acid Salt)
Metformin Hydroxy Analog 2 (sulfuiric acid Salt)
  • CAT. No.M020008
  • CAS. No.98026-16-5(freebase)
  • Mol. F.C4H10N4O.H2SO4
  • Mol. W.228.22g/mol
  • Stock Status:Instock
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Metformin Hydroxy Analog 2
Metformin Hydroxy Analog 2
  • CAT. No.M020008A
  • CAS. No.98026-16-5
  • Mol. F.C4H10N4O
  • Mol. W.130.14 g/mol
  • Stock Status:Limited Stock
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Metformin Hydroxy Analog 1
Metformin Hydroxy Analog 1
  • CAT. No.M020009
  • CAS. No.141-83-3
  • Mol. F.C2H6N4O
  • Mol. W.102.1 g/mol
  • Stock Status:Custom Synthesis
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Metformin(Nitrate Salt)-Impurity B
Metformin(Nitrate Salt)-Impurity B
  • CAT. No.M020010
  • CAS. No.3553-49-9
  • Mol. F.C4H8N8.HNO3
  • Mol. W.231.17 g/mol
  • Stock Status:Custom Synthesis
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Metformin Impurity 6
Metformin Impurity 6
  • CAT. No.M020013
  • CAS. No.118632-64-7(freebase)
  • Mol. F.C4H10N4O.HCl
  • Mol. W.166.61 g/mol
  • Stock Status:Instock
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Metformin Pamoate
Metformin Pamoate
  • CAT. No.M020014
  • CAS. No.34461-22-8
  • Mol. F.C23H16O6.2C4H11N5
  • Mol. W.646.71 g/mol
  • Stock Status:Custom Synthesis
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3-Carbamimidoyl-1,1-Dimethylurea Hydrochloride
3-Carbamimidoyl-1,1-Dimethylurea Hydrochloride
  • CAT. No.M020016
  • CAS. No.NA
  • Mol. F.C4H11N4OCl
  • Mol. W.166.61 g/mol
  • Stock Status:Custom Synthesis
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Didesmethyl Metformin Hydroxy Analog Hydrochloride
Didesmethyl Metformin Hydroxy Analog Hydrochloride
  • CAT. No.M020017
  • CAS. No.926-72-7
  • Mol. F.C2H7ClN4O
  • Mol. W.138.56 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso Metformin
N-Nitroso Metformin
  • CAT. No.M020018
  • CAS. No.NA
  • Mol. F.C4H10N6O
  • Mol. W.158.16 g/mol
  • Stock Status:Under Synthesis
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Guanylurea Sulfate
Guanylurea Sulfate
  • CAT. No.M020019
  • CAS. No.591-01-5
  • Mol. F.C4H14N8O6S
  • Mol. W.302.27 g/mol
  • Stock Status:Custom Synthesis
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N-Ethyl-N-methylimidodicarbonimidic diamide
N-Ethyl-N-methylimidodicarbonimidic diamide
  • CAT. No.M020020
  • CAS. No.117122-88-0
  • Mol. F.C5H13N5
  • Mol. W.143.11 g/mol
  • Stock Status:Custom Synthesis
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Metformin Impurity 7
Metformin Impurity 7
  • CAT. No.M020021
  • CAS. No.26690-75-5
  • Mol. F.C5H10N10
  • Mol. W.210.20 g/mol
  • Stock Status:Instock
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Metformin Impurity 5
Metformin Impurity 5
  • CAT. No.M020022
  • CAS. No.847373-57-3
  • Mol. F.C4H7N5
  • Mol. W.125.13 g/mol
  • Stock Status:Custom Synthesis
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N-(N-(N-(N,N-Dimethylcarbamimidoyl)carbamimidoyl)carbamimidoyl)carbamimidoylamine
N-(N-(N-(N,N-Dimethylcarbamimidoyl)carbamimidoyl)carbamimidoyl)carbamimidoylamine
  • CAT. No.M020023
  • CAS. No.NA
  • Mol. F.C6H15N9
  • Mol. W.213.24 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso Metformin EP Impurity A
N-Nitroso Metformin EP Impurity A
  • CAT. No.M020024
  • CAS. No.NA
  • Mol. F.C2H3N5O
  • Mol. W.113.08 g/mol
  • Stock Status:Custom Synthesis
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Metformin Impurity 8
Metformin Impurity 8
  • CAT. No.M020025
  • CAS. No.598-65-2
  • Mol. F.2(C3H9N3).H2SO4
  • Mol. W.272.33 g/mol
  • Stock Status:Instock
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Metformin Impurity 9
Metformin Impurity 9
  • CAT. No.M020026
  • CAS. No.22817-15-8
  • Mol. F.C9H11N5O2
  • Mol. W.221.22 g/mol
  • Stock Status:Instock
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Nitrosocarbamylcyanomethane
Nitrosocarbamylcyanomethane
  • CAT. No.M020027
  • CAS. No.83252-78-2
  • Mol. F.C3H3N3O2
  • Mol. W.113.07 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso Metformin Impurity 1
N-Nitroso Metformin Impurity 1
  • CAT. No.M020028
  • CAS. No.NA
  • Mol. F.C3H8N6O
  • Mol. W.144.10 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso Metformin Impurity 2
N-Nitroso Metformin Impurity 2
  • CAT. No.M020029
  • CAS. No.NA
  • Mol. F.C3H8N6O
  • Mol. W.144.10 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso Metformin EP Impurity B
N-Nitroso Metformin EP Impurity B
  • CAT. No.M020031
  • CAS. No.NA
  • Mol. F.C4H7N9O
  • Mol. W.197.16 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso Metformin EP Impurity E
N-Nitroso Metformin EP Impurity E
  • CAT. No.M020032
  • CAS. No.NA
  • Mol. F.C3H8N6O
  • Mol. W.144.14 g/mol
  • Stock Status:Custom Synthesis
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Metformin Impurity 3
Metformin Impurity 3
  • CAT. No.M020033
  • CAS. No.7260-94-8
  • Mol. F.C3H7NO2
  • Mol. W.89.09 g/mol
  • Stock Status:Custom Synthesis
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Metformin Impurity 4
Metformin Impurity 4
  • CAT. No.M020034
  • CAS. No.NA
  • Mol. F.C10H17N5O6
  • Mol. W.303.27 g/mol
  • Stock Status:Custom Synthesis
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Metformin Impurity 10
Metformin Impurity 10
  • CAT. No.M020035
  • CAS. No.4390-68-5
  • Mol. F.C2H5N3O2
  • Mol. W.103.08 g/mol
  • Stock Status:Custom Synthesis
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Metformin Impurity 11
Metformin Impurity 11
  • CAT. No.M020036
  • CAS. No.32151-75-0
  • Mol. F.C6H12N12
  • Mol. W.252.24 g/mol
  • Stock Status:Custom Synthesis
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Metformin Impurity 12
Metformin Impurity 12
  • CAT. No.M020037
  • CAS. No.118632-64-7
  • Mol. F.C4H10N4O
  • Mol. W.130.15 g/mol
  • Stock Status:Custom Synthesis
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Isotope Labelled Compounds

Metformin-D6 Hydrochloride
Metformin-D6 Hydrochloride
  • CAT. No.M020002
  • CAS. No.1185166-01-1
  • Mol. F.C4H5D6N5.HCl
  • Mol. W.171.66 g/mol
  • Stock Status:Instock
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Melamine 13C3
Melamine 13C3
  • CAT. No.M020030
  • CAS. No.1173022-88-2
  • Mol. F.13C3H6N6
  • Mol. W.129.01 g/mol
  • Stock Status:Instock
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