Impurities

Pregabalin Pyrandione Impurity

Product Code:Ax-IMP863
CAS Number:185815-59-2
Synonyms:4-isobutyldihydro-2H-pyran-2,6(3H)-dione
Molecular Formula:C9H14O3
Molecular Weight:170.21

Pregabalin 4-Ene Impurity

Product Code:Ax-IMP858
CAS Number:NA
Synonyms:
Molecular Formula:
Molecular Weight:

Vigabatrin Related compound A

Product Code:Ax-IMP865
CAS Number:7529-16-0
Synonyms:5-vinylpyrrolidin-2-one
Molecular Formula:C6H9NO
Molecular Weight:111.14

Vigabatrin Impurity

Product Code:Ax-IMP866
CAS Number:56-12-2
Synonyms:4-aminobutanoic acid
Molecular Formula:C4H9NO2 /
Molecular Weight:103.12

Triacetly aloe-emodin Impurity A

Product Code:Ax-IMP867
CAS Number:25395-11-3
Synonyms:3-(acetoxymethyl)-9,10-dioxo-9,10-dihydroanthracene-1,8-diyl diacetate
Molecular Formula:C21H16O8
Molecular Weight:396.35

Leflunomide BP Impurity B

Product Code:Ax-IMP868
CAS Number:163451-81-8
Synonyms:(Z)-2-cyano-3-hydroxy-N-(4-(trifluoromethyl)phenyl)but-2-enamide
Molecular Formula:C12H9F3N2O2
Molecular Weight:270.21

Leflunomide EP Impurity C

Product Code:Ax-IMP869
CAS Number:61643-23-0
Synonyms:5-methyl-N-(3-(trifluoromethyl)phenyl)isoxazole-4-carboxamide
Molecular Formula:C12H9F3N2O2
Molecular Weight:270.21

Azelastine EP Impurity E

Product Code:Ax-IMP876
CAS Number:20526-97-0
Synonyms:(Z)-3-(4-chlorobenzylidene)isobenzofuran-1(3H)-one
Molecular Formula:C15H9ClO2
Molecular Weight:256.69

Azelastine EP Impurity D

Product Code:Ax-IMP875
CAS Number:53242-89-9; 53242-88-9
Synonyms:4-(4-chlorobenzyl)phthalazin-1(2H)-one
Molecular Formula:C15H11ClN2O
Molecular Weight:270.72

Azelastine EP Impurity B

Product Code:Ax-IMP874
CAS Number:117078-69-0 (HCl); 110406-94-5
Synonyms:N'-(1-methylazepan-4-yl)benzohydrazide
Molecular Formula:C14H21N3O
Molecular Weight:247.34