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Pharmaceutical analytical standards

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

APIs from A to Z →

Results 53,961-53,970 of 59,523

Zaltoprofen S-Oxide

ImpurityLevels of characterisation
Cat. No.
P-Z004-014
CAS
134085-79-3
Formula
C17H14O4S
Family
Zaltoprofen
Synonyms
Zaltoprofen Sulfoxide, 2-(6,11-dioxo-5H-benzo[b][1]benzothiepin-3-yl)propanoic acid

Zileuton Impurity 1

ImpurityLevels of characterisation
Cat. No.
P-Z016-009
CAS
1026256-93-8
Formula
C17H15NO3S
Family
Zileuton
Synonyms
Phenyl (1-(benzo[b]thiophen-2-yl)ethyl)(hydroxy)carbamate, phenyl N-[1-(1-benzothiophen-2-yl)ethyl]-N-hydroxycarbamate

Zileuton Sulfoxide

ImpurityLevels of characterisation
Cat. No.
P-Z016-011
CAS
1147524-83-1
Formula
C11H12N2O3S
Family
Zileuton
Synonyms
1-hydroxy-1-[1-(1-oxo-1-benzothiophen-2-yl)ethyl]urea

Zileuton USP Related Compound A

Pharmacopoeial impurityLevels of characterisation
Cat. No.
P-Z016-002
CAS
171370-49-3
Formula
C11H12N2OS
Family
Zileuton
Synonyms
Zileuton Related Compound A, N-dehydroxyzileuton

Zileuton USP Related Compound B

Pharmacopoeial impurityLevels of characterisation
Cat. No.
P-Z016-003
CAS
97978-07-9
Formula
C17H10OS2
Family
Zileuton
Synonyms
Zileuton Related Compound B, 2-(Benzo(b)thien-2-oyl)benzo(b)thiophene

Zileuton USP Related Compound C

Pharmacopoeial impurityLevels of characterisation
Cat. No.
P-Z016-004
CAS
22720-75-8
Formula
C10H8OS
Family
Zileuton
Synonyms
2-Acetylbenzothiophene, 1-(1-benzothiophen-2-yl)ethanone

Zileuton-d4

Isotopically labelledLevels of characterisation
Cat. No.
P-Z016-006
CAS
1189878-76-9
Formula
C11H8D4N2O2S
Family
Zileuton
Synonyms
1-[1-(1-benzothiophen-2-yl)-1,2,2,2-tetradeuterioethyl]-1-hydroxyurea, Zileuton-d4 (major)

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