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Pharmaceutical analytical standards

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

APIs from A to Z →

Results 48,901-48,910 of 59,523

Rac-Levodopa EP Impurity A

Pharmacopoeial impurityLevels of characterisation
Cat. No.
P-L048-007
CAS
21373-30-8
Formula
C9H11NO5
Family
Levodopa
Synonyms
3-(2,4,5-Trihydroxyphenyl)-DL-alanine, 2-amino-3-(2,4,5-trihydroxyphenyl)propanoic acid

Levodopa EP Impurity C

Pharmacopoeial impurityLevels of characterisation
Cat. No.
P-L048-003
CAS
7636-26-2
Formula
C10H13NO4
Family
Levodopa
Synonyms
3-Methoxy-dl-tyrosine, 2-amino-3-(4-hydroxy-3-methoxyphenyl)propanoic acid

Levodopa EP Impurity C Hydrochloride

Pharmacopoeial impurityLevels of characterisation
Cat. No.
P-L048-004
CAS
91013-37-5
Formula
C10H13NO4·HCl
Family
Levodopa
Synonyms
Levodopa USP Related Compound B HCl, DL-3-O-Methyldopa HCl

Levodopa EP Impurity D

Pharmacopoeial impurityLevels of characterisation
Cat. No.
P-L048-006
CAS
5796-17-8
Formula
C9H11NO4
Family
Levodopa
Synonyms
3,4-Dihydroxy-D-Phenylalanine, dopa d-form

Levodopa Impurity 1

ImpurityLevels of characterisation
Cat. No.
P-L048-009
CAS
33879-32-2
Formula
C10H13NO3
Family
Levodopa
Synonyms
(2S)-2-Amino-3-(3-methoxyphenyl)propanoic Acid, 3-Methoxy-L-Phenylalanine

Levodopa Impurity 2

ImpurityLevels of characterisation
Cat. No.
P-L048-010
CAS
27313-65-1
Formula
C13H17NO5
Family
Levodopa
Synonyms
2-Acetamido-3-(3,4-dimethoxyphenyl)propanoic Acid, N-acetyl-3,4-dimethoxyphenylalanine

Levodopa Impurity 4

ImpurityLevels of characterisation
Cat. No.
P-L048-017
CAS
2259692-12-9
Formula
C12H13NO6
Family
Levodopa
Synonyms
(1S,3S)-6,7-Dihydroxy-1-methyl-3,4-dihydro-2H-isoquinoline-1,3-dicarboxylic acid

Levodopa Impurity 5

ImpurityLevels of characterisation
Cat. No.
P-L048-018
CAS
2259692-11-8
Formula
C12H13NO6
Family
Levodopa
Synonyms
(1R,3S)-6,7-Dihydroxy-1-methyl-3,4-dihydro-2H-isoquinoline-1,3-dicarboxylic acid

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