Pharmaceutical Reference Standards / Impurity Standards

4-(acetylphenylamino)-1-(2-methoxycarbonyl ethyl)piperidine-4-carboxylic acid methyl ester
4-(acetylphenylamino)-1-(2-methoxycarbonyl ethyl)piperidine-4-carboxylic acid methyl ester
  • CAT. No.R600001
  • CAS. No.NA
  • Mol. F.C19H26N2O5
  • Mol. W.362.42 g/mol
  • Stock Status:Instock
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Remifentanil EP Impurity C
Remifentanil EP Impurity C
  • CAT. No.R600005
  • CAS. No.132875-68-4
  • Mol. F.C19H26N2O5
  • Mol. W.362.42 g/mol
  • Stock Status:Instock
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Remifentanil EP Impurity A
Remifentanil EP Impurity A
  • CAT. No.R600006
  • CAS. No.NA
  • Mol. F.C16H22N2O3
  • Mol. W.290.36 g/mol
  • Stock Status:Instock
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Remifentanil EP Impurity E
Remifentanil EP Impurity E
  • CAT. No.R600009
  • CAS. No.2518277-19-3
  • Mol. F.C23H32N2O6
  • Mol. W.432.52 g/mol
  • Stock Status:Custom Synthesis
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Remifentanil Methyl Ester Impurity
Remifentanil Methyl Ester Impurity
  • CAT. No.R600012
  • CAS. No.NA
  • Mol. F.C13H19ClN2O2
  • Mol. W.270.76 g/mol
  • Stock Status:Custom Synthesis
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Remifentanil EP Impurity G
Remifentanil EP Impurity G
  • CAT. No.R600013
  • CAS. No.61085-72-1
  • Mol. F.C23H28N2O3
  • Mol. W.380.48 g/mol
  • Stock Status:Instock
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4-(Phenylamino)-1-benzyl-4-piperidinecarboxamide
4-(Phenylamino)-1-benzyl-4-piperidinecarboxamide
  • CAT. No.R600014
  • CAS. No.NA
  • Mol. F.C19H23N3O
  • Mol. W.309.41 g/mol
  • Stock Status:Instock
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Remifentanil EP Impurity J
Remifentanil EP Impurity J
  • CAT. No.R600015
  • CAS. No.61085-60-7
  • Mol. F.C20H24N2O2
  • Mol. W.324.42 g/mol
  • Stock Status:Instock
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Remifentanil EP Impurity L
Remifentanil EP Impurity L
  • CAT. No.R600016
  • CAS. No.2518276-69-0
  • Mol. F.C19H25N3O3
  • Mol. W.343.43 g/mol
  • Stock Status:Custom Synthesis
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Remifentanil EP Impurity M
Remifentanil EP Impurity M
  • CAT. No.R600017
  • CAS. No.938184-94-2
  • Mol. F.C16H21N3O2
  • Mol. W.287.36 g/mol
  • Stock Status:Instock
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Methyl-1-(2-(methoxycarbonyl)ethyl)-4-(phenylamino)piperidine-4carboxylate hydrochloride
Methyl-1-(2-(methoxycarbonyl)ethyl)-4-(phenylamino)piperidine-4carboxylate hydrochloride
  • CAT. No.R600018
  • CAS. No.938184-95-3
  • Mol. F.C17H25ClN2O4
  • Mol. W.356.84 g/mol
  • Stock Status:Custom Synthesis
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Methyl 3-(2-ethyl-4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]dec-2-en-8-yl)propanoate
Methyl 3-(2-ethyl-4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]dec-2-en-8-yl)propanoate
  • CAT. No.R600019
  • CAS. No.NA
  • Mol. F.C19H25N3O3
  • Mol. W.NA
  • Stock Status:Custom Synthesis
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Remifentanil EP Impurity A Hydrochloride
Remifentanil EP Impurity A Hydrochloride
  • CAT. No.R600020
  • CAS. No.61085-87-8
  • Mol. F.C16H23ClN2O3
  • Mol. W.326.82 g/mol
  • Stock Status:Instock
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Remifentanil EP Impurity D
Remifentanil EP Impurity D
  • CAT. No.R600021
  • CAS. No.NA
  • Mol. F.C21H30N2O5
  • Mol. W.390.47 g/mol
  • Stock Status:Instock
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Remifentanil EP impurity K
Remifentanil EP impurity K
  • CAT. No.R600022
  • CAS. No.NA
  • Mol. F.C17H24N2O3
  • Mol. W.304.38 g/mol
  • Stock Status:Instock
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4-(methoxycarbonyl)-4-[(1-oxopropyl)phenylamino]-1-piperidinepropanoic acid,2,2,2-trifluoroacetate
4-(methoxycarbonyl)-4-[(1-oxopropyl)phenylamino]-1-piperidinepropanoic acid,2,2,2-trifluoroacetate
  • CAT. No.R600024
  • CAS. No.NA
  • Mol. F.C21H27F3N2O7
  • Mol. W.476.44 g/mol
  • Stock Status:Instock
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