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Pharmaceutical analytical standards

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

APIs from A to Z →

Results 49,911-49,920 of 59,523

Berberine Impurity 3

ImpurityLevels of characterisation
Cat. No.
P-B055-011
CAS
2043361-62-0
Formula
C20H18ClNO5
Family
Berberine
Synonyms
16,17-Dimethoxy-5,7-dioxa-13-azoniapentacyclo[11.8.0.02,10.04,8.015,20]henicosa-1(13),2,4(8),9,14,16,18,20-octaen-12-ol chloride

Berberine Impurity 5 Chloride

ImpurityLevels of characterisation
Cat. No.
P-B055-013
CAS
2614959-06-5
Formula
C18H16NO4·Cl
Family
Berberine
Synonyms
9-Methoxy-5,6-dihydroisoquinolino[2,1-b]isoquinolin-7-ium-2,3,10-triol chloride

Berberine Impurity 6 Chloride

ImpurityLevels of characterisation
Cat. No.
P-B055-014
CAS
2363741-22-2
Formula
C18H16NO4·Cl
Family
Berberine
Synonyms
10-Methoxy-5,6-dihydroisoquinolino[2,1-b]isoquinolin-7-ium-2,3,9-triol chloride

1,3-Bis(4-hydroxyphenyl)-Urea

ImpurityLevels of characterisation
Cat. No.
P-U011-014
CAS
2298-28-4
Formula
C13H12N2O3
Family
Urea
Synonyms
Urea,N,N'-bis(4-hydroxyphenyl)-, p-Oxyphenylaminoketon

N-Boc-D-Leu-D-Leu

ImpurityLevels of characterisation
Cat. No.
P-L039-024
CAS
863781-36-6
Formula
C17H32N2O5
Family
Leucine
Synonyms
Boc-D-leucyl-D-leucine, Boc-D-Leu-D-Leu-OH

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