Pharmaceutical Impurity Standards & Reference Standards

Browse our full catalog of pharmaceutical impurities, reference materials, and research chemicals.

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Aspirin

Acetylsalicylic Acid Impurity A (Aspirin Impurity A)

CAT No.-
CAS No.99-96-7
Mol. F.C7H6O3
Mol. W.138.12
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Aspirin

Acetylsalicylic Acid EP Impurity C (Salicylic Acid)

CAT No.-
CAS No.69-72-7
Mol. F.C7H6O3
Mol. W.138.12
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Aspirin

Acetylsalicylic Acid EP Impurity D(Acetylsalicylsalicylic Acid)

CAT No.-
CAS No.530-75-6
Mol. F.C16H12O6
Mol. W.300.27
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Aspirin

Acetylsalicylic Acid EP Impurity F (Aspirin ImpurityF)

CAT No.-
CAS No.1466-82-6
Mol. F.C18H14O7
Mol. W.342.30
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Aspirin

Acetylsalicylic Acid Acyl-D-Glucuronide (AspirinAcyl-D-Glucuronide)

CAT No.-
CAS No.24719-72-0
Mol. F.C15H16O10
Mol. W.356.28
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Aspirin

Acetylsalicylic Acid-d4 (Aspirin-d4)

CAT No.-
CAS No.97781-16-3
Mol. F.C9H4D4O4
Mol. W.184.18
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Aspirin

Acetylsalicylic Acid (Aspirin) Impurity 4

CAT No.-
CAS No.2513-33-9
Mol. F.C14H10O5
Mol. W.258.23
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Aspirin

Acetylsalicylic Acid EP Impurity B (Aspirin ImpurityB)

CAT No.-
CAS No.636-46-4
Mol. F.C8H6O5
Mol. W.182.13
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Aspirin

Acetylsalicylic Acid EP Impurity E (Aspirin ImpurityE)

CAT No.-
CAS No.552-94-3
Mol. F.C14H10O5
Mol. W.258.23
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Aspirin

Acetylsalicylsalicylsalicylic Acid

CAT No.-
CAS No.85531-16-4
Mol. F.C23H16O8
Mol. W.420.37
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