Impurities are undesirable chemical components that remain in the active pharmaceutical ingredient during formulation. Impurities may reduce a product's efficacy.

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Carbamazepine Impurity 1

CAS Number
1809883-69-9
Carbamazepine
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Carbamazepine Impurity 3

CAS Number
186694-12-2
Carbamazepine
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Viloxazine Hydrochloride Standard

CAS Number
35604-67-2
viloxazine
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N-Nitroso Levofloxacin

CAS Number
1152314-62-9
Levofloxacin
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Elagolix Sodium

CAS Number
832720-36-2
Alternate CAS Number
834153-87-6 (free base) ; 2390005-65-7 (HCl salt) ; 2254609-59-9 (K salt) ; 2390005-66-8 (TFA salt)
Elagolix
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Betaxolol Standard

CAS Number
63659-18-7
Alternate CAS Number
Betaxolol Hydrochloride-63659-19-8
Betaxolol
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Rifapentine N-Oxide

CAS Number
NA
Rifapentine
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