Dimenhydrinate for peak identification

Teicoplanin

Interferon beta-1a

Itraconazole for system suitability

Valaciclovir impurity G - N,N-dimethylpyridin-4-amine

Valaciclovir impurity F - para-toluenesulfonate 2-hydroxyethyl L-valinate

Valaciclovir impurity E - 2-[(2-amino-6-oxo-1,6dihydro-9H-purin-9-yl)methoxy]ethyl N-[(benzyloxy)carbonyl]-L-valinate

Valaciclovir impurity D - 2-[(2-amino-6-oxo-1,6dihydro-9H-purin-9-yl)methoxy]ethyl N-ethyl-L-valinate

Cyproheptadine impurity C - 5-(1-methylpiperidin-4-yl)-5H-dibenzo[a,d][7]annulen-5-ol

Aceclofenac for peak identification