Pharmaceutical Reference Standards / Impurity Standards

2H,2`H-[1,1`-bipyrimidine]-2,2`,4,4`(3H,3`H)-tetraone
2H,2`H-[1,1`-bipyrimidine]-2,2`,4,4`(3H,3`H)-tetraone
  • CAT. No.F420013
  • CAS. No.NA
  • Mol. F.C8H6N4O4
  • Mol. W.222.16 g/mol
  • Stock Status:Custom Synthesis
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4,6-Dihydroxy-5-methoxypyrimidine
4,6-Dihydroxy-5-methoxypyrimidine
  • CAT. No.F420011
  • CAS. No.5193-84-0
  • Mol. F.C5H6N2O3
  • Mol. W.142.1 g/mol
  • Stock Status:Custom Synthesis
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5,6-Diamino-1,3-dimethyluracil
5,6-Diamino-1,3-dimethyluracil
  • CAT. No.F420014
  • CAS. No.5440-00-6
  • Mol. F.C6H10N4O2
  • Mol. W.170.20 g/mol
  • Stock Status:Custom Synthesis
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Fluorouracil
Fluorouracil
  • CAT. No.F420000
  • CAS. No.51-21-8
  • Mol. F.C4H3FN2O2
  • Mol. W.130.08 g/mol
  • Stock Status:Instock
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Fluorouracil EP Impurity B
Fluorouracil EP Impurity B
  • CAT. No.F420003
  • CAS. No.496-76-4
  • Mol. F.C4H4N2O3
  • Mol. W.128.09 g/mol
  • Stock Status:Instock
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Fluorouracil EP Impurity D
Fluorouracil EP Impurity D
  • CAT. No.F420007
  • CAS. No.6623-81-0
  • Mol. F.C5H6N2O3
  • Mol. W.142.11 g/mol
  • Stock Status:Instock
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Fluorouracil EP Impurity E
Fluorouracil EP Impurity E
  • CAT. No.F420004
  • CAS. No.1820-81-1
  • Mol. F.C4H3ClN2O2
  • Mol. W.146.53 g/mol
  • Stock Status:Instock
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Fluorouracil EP Impurity F
Fluorouracil EP Impurity F
  • CAT. No.F420005
  • CAS. No.56177-80-1
  • Mol. F.C6H7FN2O2
  • Mol. W.158.04 g/mol
  • Stock Status:Instock
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Fluorouracil EP Impurity G
Fluorouracil EP Impurity G
  • CAT. No.F420001
  • CAS. No.57-13-6 
  • Mol. F.CH4N2O
  • Mol. W.60.06 g/mol
  • Stock Status:Instock
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Fluorouracil Impurity 11
Fluorouracil Impurity 11
  • CAT. No.F420012
  • CAS. No.NA
  • Mol. F.C8H5FN4O4
  • Mol. W.240.15 g/mol
  • Stock Status:Custom Synthesis
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Fluorouracil Related Compound A
Fluorouracil Related Compound A
  • CAT. No.F420002
  • CAS. No.67-52-7
  • Mol. F.C4H4N2O3
  • Mol. W.128.09 g/mol
  • Stock Status:Instock
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Urapidil Impurity 4
Urapidil Impurity 4
  • CAT. No.F420010
  • CAS. No.769-42-6
  • Mol. F.C6H8N2O3
  • Mol. W.156.14 g/mol
  • Stock Status:Instock
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Isotope Labelled Compounds

5-Fluorouracil-13C,15N2
5-Fluorouracil-13C,15N2
  • CAT. No.F420009
  • CAS. No.1189423-58-2
  • Mol. F.C313CH3F15N2O2
  • Mol. W.133.06 g/mol
  • Stock Status:Custom Synthesis
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5-Fluorouracil-15N2
5-Fluorouracil-15N2
  • CAT. No.F420008
  • CAS. No.68941-95-7
  • Mol. F.C4H3F15N2O2
  • Mol. W.132.06 g/mol
  • Stock Status:Custom Synthesis
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