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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Carvedilol EP Impurity D

CAS Number
1391052-16-6
Carvedilol
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Carvedilol Impurity 10

CAS Number
53815-60-4
Carvedilol
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Carvedilol Phosphate Standard

CAS Number
374779-45-0
Alternate CAS Number
72956-09-3(Freebase)
Carvedilol
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Cefalexin R-Sulfoxide

CAS Number
52210-38-5
Cephalexin
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Cefalexin S-Sulfoxide

CAS Number
74708-55-7
Cephalexin
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Cefepime Related Compound E

CAS Number
103121-85-3
Cefepime
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Cefotaxime Related Compound E

CAS Number
66340-33-8
Cefotaxime
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Ceftazidime Pentahydrate Standard

CAS Number
78439-06-2
Ceftazidime
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Ceftazidime Pentahydrate Standard

CAS Number
78439-06-2
Ceftazidime
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Ceftazidime Standard

CAS Number
72558-82-8
Alternate CAS Number
78439-06-2 (pentahydrate)
Ceftazidime
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Ceftazidime Standard

CAS Number
72558-82-8
Alternate CAS Number
78439-06-2 (pentahydrate)
Ceftazidime
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Ceftriaxone Sodium E-Isomer

CAS Number
97164-54-0
Ceftriaxone
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Cephalexin EP Impurity B

CAS Number
22252-43-3
Alternate CAS Number
56871-82-0 (Na salt)
Cephalexin
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Cephalexin EP Impurity C

CAS Number
72528-40-6
Cephalexin
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Cephalexin EP Impurity D

CAS Number
34876-35-2
Cephalexin
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Cephalexin EP Impurity E

CAS Number
146794-70-9
Cephalexin
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Cephalexin EP Impurity F

CAS Number
79750-46-2
Alternate CAS Number
NA(DiH2O Salt)
Cephalexin
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Cephalexin Impurity-1

CAS Number
59865-11-1
Alternate CAS Number
NA(HCl Salt)
Cephalexin
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Cetirizine 4-Chlorobenzophenone Impurity (USP)

Cetirizine 4-Chlorobenzophenone Impurity (USP)

CAS Number
134-85-0
Cetirizine
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Cetirizine Dihydrochloride - Impurity B

Cetirizine Dihydrochloride Impurity - B

CAS Number
113740-61-7; 1000690-91-4(DiHCl Salt);113740-61-7(Freebase)
Cetirizine
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Cetirizine Impurity - E

Cetirizine Dihydrochloride- Impurity E

CAS Number
682323-77-9
Cetirizine
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Cetirizine EP Impurity C

Cetirizine EP Impurity - C

CAS Number
83881-59-8
Cetirizine
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Cetirizine Ethyl Ester (USP RC A)

Cetirizine Ethyl Ester

CAS Number
246870-46-2
Cetirizine
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Cetirizine Impurity - 7

Cetirizine Impurity - 7

CAS Number
82-93-9
Cetirizine
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Cetirizine Impurity 2

Cetirizine Impurity -2

CAS Number
1391052-52-0
Cetirizine
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Cetirizine Methyl Ester (USP)

Cetirizine Methyl Ester

CAS Number
83881-46-3 (base)
Alternate CAS Number
83881-48-5 (2HCl)
Cetirizine
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Chlorhexidine Dihydrochloride Standard

CAS Number
3697-42-5
Chlorhexidine
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Chlorhexidine Standard

CAS Number
55-56-1
Alternate CAS Number
56-95-1(Diacetate Salt);3697-42-5(DiHCl Salt);18472-51-0(Digluconate Salt)
Chlorhexidine
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Chloropyridinyl methylpyridine

Chloropyridinyl methylpyridine

CAS Number
1628184-06-4
Vimseltinib
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Chloroquine Dihydrochloride

CAS Number
3545-67-3
Chloroquine phosphate
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Chloroquine Hydrochloride

CAS Number
6165-15-7
Chloroquine phosphate
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78180-89-9

Chlorphenamine N-Oxide Impurity 2

CAS Number
78180-89-9
Chlorpheniramine
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Chlorpheniramine API (Freebase)

Chlorpheniramine API (Freebase)

CAS Number
132-22-9
Chlorpheniramine
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Chlorpheniramine USP related compound-B

Chlorpheniramine USP related compound B

CAS Number
1202-34-2
Chlorpheniramine
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chlorpheniramine EP Impurity - C

Chlorpheniramine EP Impurity - C

CAS Number
20619-12-9(free base)
Alternate CAS Number
22630-25-7(Maleate Salt)
Chlorpheniramine
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Chlorpheniramine N-Oxide

Chlorpheniramine N-Oxide

CAS Number
120244-82-8
Chlorpheniramine
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Chlorpromazine EP Impurity C

CAS Number
58-40-2
Alternate CAS Number
53-60-1(HCl Salt)
Chlorpromazine
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Chlorpromazine EP Impurity F

CAS Number
13094-24-1
Alternate CAS Number
72372-62-4(HCl Salt)
Chlorpromazine
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Chlorpromazine Standard

CAS Number
50-53-3
Alternate CAS Number
69-09-0(HCl Salt)
Chlorpromazine
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Chlortalidone EP Impurity A

CAS Number
345930-32-7
Chlortalidone
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Chlortalidone EP Impurity E

CAS Number
82875-49-8
Chlortalidone
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Chlortalidone EP Impurity F

CAS Number
1796929-84-4
Chlortalidone
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Chlortalidone EP Impurity G

CAS Number
16289-13-7
Chlortalidone
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Chlortalidone EP Impurity H

CAS Number
2200280-98-2
Chlortalidone
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Chlortalidone EP Impurity I

CAS Number
2514668-27-8
Chlortalidone
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Chlortalidone Impurity J

CAS Number
956-92-3
Chlortalidone
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Chlortetracycline Standard

CAS Number
57-62-5
Chlortetracycline
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Chlorthalidone Amine Impurity

CAS Number
NA
Chlortalidone
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