Impurities

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

70805-84-4

Desogestrel Impurity 2

CAS Number

70805-84-4

92962-23-7

3-Phenyl-3-(o-tolyl)propanenitrile

CAS Number

92962-23-7

Lercanidipine hydrochloride

882297-86-1

Desogestrel Impurity 4

CAS Number

882297-86-1

Desogestrel Impurity 6

Desogestrel Impurity 5

CAS Number

NA

Desogestrel Impurity 6

Desogestrel Impurity 6

CAS Number

NA

Desogestrel Impurity 7

Desogestrel Impurity 7

CAS Number

53067-82-6

201360-82-9

Desogestrel EP Impurity A

CAS Number

201360-82-9

66452-30-0

Methyl Gestodene

CAS Number

66452-30-0

136656-97-8

Dexketoprofen Ethyl Ester

CAS Number

136656-97-8

107257-20-5

Dexketoprofen related compound - A

CAS Number

107257-20-5

851775-73-0

Dexketoprofen Isopropyl Ester

CAS Number

851775-73-0

81601-91-4

Dexketoprofen Methyl Ester

CAS Number

81601-91-4

643-65-2

3-Methylbenzophenone

CAS Number

643-65-2

66067-43-4

3-Ethylbenzophenone

CAS Number

66067-43-4

1797984-80-5

(2RS)-2-[3-(2,4,5-Trimethylbenzoyl)phenyl]propanoic Acid

CAS Number

1797984-80-5

22071-15-4

rac Ketoprofen

CAS Number

22071-15-4

107257-20-5

2-[3-(4-Methyl-benzoyl)-phenyl]-propionic Acid

CAS Number

107257-20-5

C21H26N2O7

5-(sec-Butoxycarbonyl)-1-(methoxymethyl)-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carboxylic Acid

CAS Number

NA

Lercanidipine hydrochloride

C30H37N3O7

3-(1-((3-Hydroxy-3-phenylpropyl)(methyl)amino)-2-methylpropan-2-yl) 5-methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate

CAS Number

NA

Lercanidipine hydrochloride

C21H27N3O6

Methyl 5-((2-hydroxy-2-methylpropyl)(methyl)carbamoyl)-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carboxylate

CAS Number

NA

Lercanidipine hydrochloride

C19H18N4O7

3-(2-Isocyanoethyl) 5-methyl 2,6-dimethyl-4-(3-nitrophenyl)-1-nitroso-1,4-dihydropyridine-3,5-dicarboxylate

CAS Number

NA

Lercanidipine hydrochloride

C52H55N5O11

Lercanidipine Impurity - 28

CAS Number

NA

Lercanidipine hydrochloride

C14H19ClN2

Dexmedetomidine Hydrochloride Impurity - D

CAS Number

NA

C36H39N3O6

Lercanidipine Impurity - 26

CAS Number

NA

Lercanidipine hydrochloride

103-29-7

Bibenzyl

CAS Number

103-29-7

3034-50-2

5-Imidazolecarboxaldehyde

CAS Number

3034-50-2

519-73-3

Triphenylmethane

CAS Number

519-73-3

172498-90-7

1-Trityl-1H-imidazole-5-carboxaldehyde

CAS Number

172498-90-7

86347-12-8

Hydroxymedetomidine

CAS Number

86347-12-8

1174289-18-9

9-(1,3-Dioxolan-2-ylmethyl)-3,9-dihydro-1,3-dimethyl-1H-purine-2,6-dione

CAS Number

1174289-18-9

123524-29-8

7-((1,3-Dioxolan-2-yl)methyl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione

CAS Number

123524-29-8

914613-35-7

Candesartan Cilexetil Impurity - E

CAS Number

914613-35-7

Candesartan Cilexetil

133051-88-4

Candesartan Bromo N2-Trityl Impurity

CAS Number

133051-88-4

Candesartan Cilexetil

99464-83-2

1-Chloroethyl Cyclohexyl Carbonate

CAS Number

99464-83-2

Candesartan Cilexetil

1391054-45-7

N-Cilexetil Candesartan Ethyl Ester

CAS Number

1391054-45-7

Candesartan Cilexetil

136285-67-1

Candesartan PGI-5 Impurity

CAS Number

136285-67-1

Candesartan Cilexetil

914613-36-8

Candesartan Cilexetil Related Compound - F

CAS Number

914613-36-8

Candesartan Cilexetil

1185256-03-4

Candesartan Cilexetil Related Compound - D

CAS Number

1185256-03-4

Candesartan Cilexetil

869631-11-8

Candesartan Cilexetil Related Compound - B

CAS Number

869631-11-8

Candesartan Cilexetil

170791-09-0

Trityl candesartan cilexetil

CAS Number

170791-09-0

Candesartan Cilexetil

139481-69-9

Candesartan Cilexetil EP Impurity - I

CAS Number

139481-69-9

Candesartan Cilexetil

Cetirizine 4-Chlorobenzophenone Impurity (USP)

Cetirizine 4-Chlorobenzophenone Impurity (USP)

CAS Number

134-85-0

Cetirizine Dihydrochloride - Impurity B

Cetirizine Dihydrochloride Impurity - B

CAS Number

113740-61-7; 1000690-91-4(DiHCl Salt);113740-61-7(Freebase)

Cetirizine Impurity 2

Cetirizine Impurity -2

CAS Number

1391052-52-0

[2-(2-Aminoethoxy)ethoxy]acetic Acid

[2-(2-Aminoethoxy)ethoxy]acetic Acid

CAS Number

134978-97-5

Cetirizine Impurity - 7

Cetirizine Impurity - 7

CAS Number

82-93-9

Cetirizine EP Impurity C

Cetirizine EP Impurity - C

CAS Number

83881-59-8

Cetirizine Impurity - E

Cetirizine Dihydrochloride- Impurity E

CAS Number

682323-77-9