Impurities

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

C9H11Cl2NO

2-Amino-1-(3-chloro phenyl)propan-1-one hydrochloride

CAS Number

2227990-16-9

Alternate CAS Number

119802-69-6(Freebase)

Buspirone EP Impurity-F

Buspirone EP Impurity-F

CAS Number

2512210-24-9

6’-Hydroxy Buspirone

6’-Hydroxy Buspirone

CAS Number

125481-61-0

2-(4-Nitrosopiperazin-1-yl)pyrimidine

2-(4-Nitrosopiperazin-1-yl)pyrimidine

CAS Number

872826-80-7

Buspirone N-Oxide

Buspirone N-Oxide

CAS Number

220747-81-9

Amlodipine Mannitol Adduct

Amlodipine Mannitol Adduct

CAS Number

NA

3-O-Desmethyl Amlodipine

3-O-Desmethyl Amlodipine

CAS Number

113994-37-9

Deschloro Amlodipine

Deschloro Amlodipine

CAS Number

88150-52-1

2-((2-Aminoethoxy)methyl)-4-(2-chlorophenyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylic Acid

2-((2-Aminoethoxy)methyl)-4-(2-chlorophenyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylic Acid

CAS Number

1821498-25-2

Amlodipine Methyl Monoester Impurity

Amlodipine Methyl Monoester Impurity

CAS Number

1809326-44-0

N-Fomyl Amlodipine

N-Formyl Amlodipine

CAS Number

93848-81-8

Amlodipine Maleate Adduct

Amlodipine Maleate Adduct

CAS Number

400602-35-9

70677-78-0

Dimethyl 2,6-Dimethyl-4-phenyl-1,4-dihydropyridine-3,5-dicarboxylate

CAS Number

70677-78-0

Amlodipine N-Galactopyranoside

Amlodipine N-Galactopyranoside

CAS Number

NA

C30H34ClN3O8

Hydroxyethyl Phthalyl Amlodipine

CAS Number

NA

Amlodipine Besilate Impurity - D (Fumarate Salt)

Amlodipine Besilate Impurity - D (Fumarate Salt)

CAS Number

2138811-33-1

34148-67-9

Diethyl 4-(2-chlorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate

CAS Number

34148-67-9

2733700-89-3

Amlodipine Besilate Impurity - D (Besilate Salt)

CAS Number

2733700-89-3

C28H28N2O7

3-Ethyl 5-methyl (S)-2-((2-(1,3-dioxoisoindolin-2-yl)ethoxy)methyl)-6-methyl-4-phenyl-1,4-dihydropyridine-3,5-dicarboxylate

CAS Number

NA

Amlodipine Methyl Ester

Amlodipine Methyl Ester

CAS Number

NA

Cetirizine Impurity - E

Cetirizine Dihydrochloride- Impurity E

CAS Number

682323-77-9

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

Chlorpheniramine USP related compound-B

Chlorpheniramine USP related compound-B

CAS Number

1202-34-2

Chlorphenamine Maleate - Impurity D (Freebase)

Chlorpheniramine Maleate - Impurity D (Freebase)

CAS Number

65676-21-3

Chlorpheniramine API (Freebase)

Chlorpheniramine API (Freebase)

CAS Number

132-22-9

Chlorpheniramine N-Oxide

Chlorpheniramine N-Oxide

CAS Number

120244-82-8

78180-89-9

Chlorphenamine N-Oxide Impurity 2

CAS Number

78180-89-9

C15H17N3O

N-Nitroso Norpheniramine

CAS Number

NA

C15H16ClN3O

N-(3-(4-Chlorophenyl)-3-(pyridin-2-yl)propyl)-N-methylnitrous amide

CAS Number

NA

528851-31-2

Ciprofloxacin Hydrochloride - Impurity C (Hcl salt)

CAS Number

528851-31-2

93107-31-4

6,7-Dichloro-1-cyclopropyl-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid

CAS Number

93107-31-4

86393-33-1

Ciprofloxacin Hydrochloride - Impurity A (Freebase)

CAS Number

86393-33-1

93107-11-0

Ciprofloxacin Hydrochloride - Impurity B (Freebase)

CAS Number

93107-11-0

C15H17ClFN3O3

Ciprofloxacin Hydrochloride - Impurity C (HclSalt)

CAS Number

528851-31-2(Salt)

Alternate CAS Number

103222-12-4(Freebase)

Impurity D

Ciprofloxacin Hydrochloride Impurity - D

CAS Number

133210-96-5(Freebase)

Alternate CAS Number

526204-10-4(HCl Salt)

105394-83-0

Ciprofloxacin Hydrochloride - Impurity E

CAS Number

105394-83-0

122224-30-0

1-Cyclopropyl-8-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic Acid

CAS Number

122224-30-0

1267935-86-3

1-Cyclopropyl-6,7-dimethoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic Acid

CAS Number

1267935-86-3

C15H17Cl2N3O3

6-(2-Aminoethylamino)-7-chloro-1- cyclopropyl-4-oxo-1,4-dihydroquinoline- 3-carboxylic Acid Hydrochloride

CAS Number

528851-30-1(Salt)

Alternate CAS Number

528851-85-6(Freebase)

Hcl salt

Ciprofloxacin Hydrochloride

CAS Number

93107-08-5

864443-44-7

N-Nitroso Ciprofloxacin

CAS Number

864443-44-7

N-Ethoxycarbonyl-ciprofloxacin

N-Ethoxycarbonyl-ciprofloxacin

CAS Number

93594-29-7

444577-70-2

4-Methyl-3-oxo-2-(2-oxo-1,2-diphenylethyl)-N-phenylpentanamide

CAS Number

444577-70-2

141942-85-0

Ethyl (R)-(-)-4-Cyano-3-hydroxybutyrate

CAS Number

141942-85-0