Pharmaceutical Impurity Standards & Reference Standards

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

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All 2,841
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PREGABALIN

Ethyl cyanoacetate

CAT No.-
CAS No.105-56-6
Mol. F.C5H7NO2
Mol. W.113.12
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PRAMIPEXOLE

Ethyl Pramipexole

CAT No.-
CAS No.1254579-15-1
Mol. F.C9H15N3S
Mol. W.197.30
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PHOSPHONIC ACID

Ethylenediamine tetramethylenephosphonic Acid

CAT No.-
CAS No.1429-50-1
Mol. F.C6H20N2O12P4
Mol. W.436.13
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Isotope Labelled Compounds

Ethylenediamine tetramethylenephosphonic Acid-d8

CAT No.-
CAS No.-
Mol. F.C6H12N2O12P4D8
Mol. W.444.18
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Impurity Standards

ent-Paroxetine HCl Hemihydrate EP Impurity BHCl

CAT No.-
CAS No.127017-74-7(enantiomer)
Mol. F.C20H23NO4. HCl
Mol. W.341.41 36.46
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PAROXETINE

ent-Paroxol

CAT No.-
CAS No.389573-45-9
Mol. F.C13H18FNO
Mol. W.223.29
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PARABEN

Ethylparaben Sodium Salt

CAT No.-
CAS No.35285-68-8
Mol. F.C9H9O3. Na
Mol. W.165.17 22.99
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Oseltamivir

Ent-Oseltamivir

CAT No.-
CAS No.1035895-88-5
Mol. F.C16H28N2O4
Mol. W.312.41
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Oseltamivir

Ent-Oseltamivir Phosphate

CAT No.-
CAS No.1035895-89-6
Mol. F.C16H28N2O4. H3O4P
Mol. W.312.41 97.99
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Impurity Standards

Esomeprazole Impurity 20

CAT No.-
CAS No.848694-10-0
Mol. F.C9H12ClNO2
Mol. W.201.65
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