Pharmaceutical Reference Standards / Impurity Standards

Allopurinol
Allopurinol
  • CAT. No.A170000
  • CAS. No.315-30-0
  • Mol. F.C5H4N4O
  • Mol. W.136.11 g/mol
  • Stock Status:Instock
Product View
Product Compare
Allopurinol EP Impurity A
Allopurinol EP Impurity A
  • CAT. No.A170001
  • CAS. No.5334-31-6
  • Mol. F.C4H6N4O
  • Mol. W.126.12 g/mol
  • Stock Status:Instock
Product View
Product Compare
Allopurinol EP Impurity B
Allopurinol EP Impurity B
  • CAT. No.A170002
  • CAS. No.22407-20-1
  • Mol. F.C5H6N4O2
  • Mol. W.154.13 g/mol
  • Stock Status:Instock
Product View
Product Compare
Allopurinol EP Impurity B Monohydrate
Allopurinol EP Impurity B Monohydrate
  • CAT. No.A170002B
  • CAS. No.22407-20-1(Free base)
  • Mol. F.C5H8N4O3
  • Mol. W.172.14 g/mol
  • Stock Status:Instock
Product View
Product Compare
Allopurinol EP Impurity C
Allopurinol EP Impurity C
  • CAT. No.A170003
  • CAS. No.1346604-13-4
  • Mol. F.C6H6N6O
  • Mol. W.178.15 g/mol
  • Stock Status:Instock
Product View
Product Compare
Allopurinol EP Impurity D
Allopurinol EP Impurity D
  • CAT. No.A170004
  • CAS. No.6994-25-8
  • Mol. F.C6H9N3O2
  • Mol. W.155.15 g/mol
  • Stock Status:Instock
Product View
Product Compare
Allopurinol EP Impurity E
Allopurinol EP Impurity E
  • CAT. No.A170005
  • CAS. No.31055-19-3
  • Mol. F.C7H9N3O3
  • Mol. W.183.16 g/mol
  • Stock Status:Instock
Product View
Product Compare
Allopurinol USP Related Compound F
Allopurinol USP Related Compound F
  • CAT. No.A170006
  • CAS. No.321571-07-7
  • Mol. F.C12H14N4O4
  • Mol. W.278.26 g/mol
  • Stock Status:Limited Stock
Product View
Product Compare
Allopurinol Related Compound A
Allopurinol Related Compound A
  • CAT. No.A170009
  • CAS. No.27511-79-1(freebase)
  • Mol. F.C4H6N4O.1/2H2O4S.1/2H2O
  • Mol. W.184.17 g/mol
  • Stock Status:Instock
Product View
Product Compare
Oxypurinol
Oxypurinol
  • CAT. No.A170010
  • CAS. No.2465-59-0
  • Mol. F.C5H4N4O2
  • Mol. W.152.11 g/mol
  • Stock Status:Instock
Product View
Product Compare
3-Morpholino-2-cyanoacrylamide
3-Morpholino-2-cyanoacrylamide
  • CAT. No.A170011
  • CAS. No.NA
  • Mol. F.C8H11N3O2
  • Mol. W.181.19 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Allopurinol Riboside
Allopurinol Riboside
  • CAT. No.A170013
  • CAS. No.16220-07-8
  • Mol. F.C10H12N4O5
  • Mol. W.268.23 g/mol
  • Stock Status:Instock
Product View
Product Compare
2-Cyano-3-Ethoxy-Acrylic Acid Ethyl Ester
2-Cyano-3-Ethoxy-Acrylic Acid Ethyl Ester
  • CAT. No.A170014
  • CAS. No.94-05-3
  • Mol. F.C8H11NO3
  • Mol. W.169.18 g/mol
  • Stock Status:Instock
Product View
Product Compare
Allopurinol Impurity 3
Allopurinol Impurity 3
  • CAT. No.A170015
  • CAS. No.NA
  • Mol. F.C6H5N3O
  • Mol. W.135.12 g/mol
  • Stock Status:Instock
Product View
Product Compare
1-Nitroso-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one
1-Nitroso-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one
  • CAT. No.A170017
  • CAS. No.NA
  • Mol. F.C5H3N5O2
  • Mol. W.165.10 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
(E)-2-cyano-3-(dimethylamino)acrylamide
(E)-2-cyano-3-(dimethylamino)acrylamide
  • CAT. No.A170018
  • CAS. No.NA
  • Mol. F.C6H9N3O
  • Mol. W.139.16 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
(Z)-2-Cyano-3-Morpholinoacrylamide
(Z)-2-Cyano-3-Morpholinoacrylamide
  • CAT. No.A170019
  • CAS. No.NA
  • Mol. F.C8H11N3O2
  • Mol. W.181.19 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Allopurinol Impurity 2
Allopurinol Impurity 2
  • CAT. No.A170021
  • CAS. No.NA
  • Mol. F.C5H6N4O2.HCl
  • Mol. W.190.59 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Allopurinol Impurity 5
Allopurinol Impurity 5
  • CAT. No.A170022
  • CAS. No.4862-18-4
  • Mol. F.C6H12N4O3
  • Mol. W.188.18 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Allopurinol EP Impurity A Sulfate
Allopurinol EP Impurity A Sulfate
  • CAT. No.A170023
  • CAS. No.NA
  • Mol. F.2(C4H6N4O).H2O4S
  • Mol. W.350.31 g/mol
  • Stock Status:Instock
Product View
Product Compare
Allopurinol N-Nitroso Pyrazole amide Impurity
Allopurinol N-Nitroso Pyrazole amide Impurity
  • CAT. No.A170024
  • CAS. No.NA
  • Mol. F.C4H5N5O2
  • Mol. W.155.11 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
N-Nitroso Allopurinol Impurity B
N-Nitroso Allopurinol Impurity B
  • CAT. No.A170025
  • CAS. No.NA
  • Mol. F.C5H5N5O3
  • Mol. W.183.13 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Allopurinol Nitroso Impurity 1
Allopurinol Nitroso Impurity 1
  • CAT. No.A170026
  • CAS. No.NA
  • Mol. F.C6H7N7O2
  • Mol. W.209.17 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Allopurinol Nitroso Impurity 2
Allopurinol Nitroso Impurity 2
  • CAT. No.A170027
  • CAS. No.NA
  • Mol. F.C6H8N4O3
  • Mol. W.184.15 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Allopurinol Nitroso Impurity 3
Allopurinol Nitroso Impurity 3
  • CAT. No.A170028
  • CAS. No.NA
  • Mol. F.C7H8N4O4
  • Mol. W.212.16 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare

Isotope Labelled Compounds

Allopurinol-D2
Allopurinol-D2
  • CAT. No.A170007
  • CAS. No.916979-34-5
  • Mol. F.C5H2D2N4O
  • Mol. W.138.12 g/mol
  • Stock Status:Instock
Product View
Product Compare
Oxypurinol 13C,15N2
Oxypurinol 13C,15N2
  • CAT. No.A170008
  • CAS. No.NA
  • Mol. F.C413CH4N215N2O2
  • Mol. W.155.09 g/mol
  • Stock Status:Limited Stock
Product View
Product Compare
Allopurinol-13C,15N2
Allopurinol-13C,15N2
  • CAT. No.A170012
  • CAS. No.NA
  • Mol. F.C413CH4N215N2O
  • Mol. W.139.09 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Allopurinol-13C,15N2, D2
Allopurinol-13C,15N2, D2
  • CAT. No.A170016
  • CAS. No.2465-59-0unlabelled
  • Mol. F.C413CH2D2N215N2O
  • Mol. W.141.1 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Allopurinol-13C3-15N
Allopurinol-13C3-15N
  • CAT. No.A170020
  • CAS. No.NA
  • Mol. F.C213C3H4N315NO
  • Mol. W.140.08 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare