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Pharmaceutical analytical standards

APIs, pharmacopoeial impurities, metabolites, nitrosamines and labelled standards.

APIs from A to Z →

Results 3,431-3,440 of 5,812

Metronidazole EP Impurity E

Pharmacopoeial impurityLevels of characterisation
Cat. No.
P-M112-008
CAS
705-19-1
Formula
C6H9N3O3
Family
Metronidazole
Synonyms
Isometronidazole, 2-(2-methyl-4-nitroimidazol-1-yl)ethanol

Metronidazole EP Impurity F

Pharmacopoeial impurityLevels of characterisation
Cat. No.
P-M112-009
CAS
16156-94-8
Formula
C8H13N3O4
Family
Metronidazole
Synonyms
O-Hydroxyethyl Metronidazole, 2-(2-(2-Methyl-5-nitro-1H-imidazol-1-yl)ethoxy)ethanol

Metronidazole EP Impurity G

Pharmacopoeial impurityLevels of characterisation
Cat. No.
P-M112-010
CAS
1010-93-1
Formula
C6H7N3O4
Family
Metronidazole
Synonyms
2-Methyl-5-nitroimidazole-1-acetic acid, 2-(2-methyl-5-nitroimidazol-1-yl)acetic acid

RRR-beta-Tocopherol

Pharmacopoeial impurityLevels of characterisation
Cat. No.
P-T141-024
CAS
16698-35-4
Formula
C28H48O2
Family
Tocopherol
Synonyms
d-beta-Tocopherol, Cumotocopherol

Salmeterol EP Impurity A

Pharmacopoeial impurityLevels of characterisation
Cat. No.
P-S010-003
CAS
1798014-51-3
Formula
C19H25NO3
Family
Salmeterol
Synonyms
2-(hydroxymethyl)-4-[1-hydroxy-2-(4-phenylbutylamino)ethyl]phenol

Salmeterol EP Impurity B

Pharmacopoeial impurityLevels of characterisation
Cat. No.
P-S010-004
CAS
94749-02-7
Formula
C23H33NO4
Family
Salmeterol
Synonyms
Des(phenylbutoxy)phenylethoxy salmeterol, o-Des(phenylbutyl)-o-phenylethyl salmeterol

Salmeterol EP Impurity C

Pharmacopoeial impurityLevels of characterisation
Cat. No.
P-S010-005
CAS
94749-11-8
Formula
C24H35NO4
Family
Salmeterol
Synonyms
Des(phenylbutoxy)phenylpropoxy salmeterol, o-Des(phenylbutyl)-o-phenylpropyl salmeterol

Salmeterol EP Impurity D

Pharmacopoeial impurityLevels of characterisation
Cat. No.
P-S010-006
CAS
1391052-04-2
Formula
C34H47NO7
Family
Salmeterol
Synonyms
4-O-(2-Hydroxy-2-(4-hydroxy-3-(hydroxymethyl)phenyl)ethyl) salmeterol, Salmeterol xinafoate, salmeterol-o-alkyl-

Salmeterol EP Impurity E

Pharmacopoeial impurityLevels of characterisation
Cat. No.
P-S010-007
CAS
108928-81-0
Formula
C25H37NO4
Family
Salmeterol
Synonyms
Salmeterol USP Related Compound B, Des(phenylbutoxy)(1-methyl-3-phenyl)propoxy salmeterol

Salmeterol EP Impurity F

Pharmacopoeial impurityLevels of characterisation
Cat. No.
P-S010-008
CAS
1391054-40-2
Formula
C25H37NO3
Family
Salmeterol
Synonyms
3-De(hydroxymethyl)-3-methyl salmeterol, 4-[1-hydroxy-2-[6-(4-phenylbutoxy)hexylamino]ethyl]-2-methylphenol

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