Cladribine for peak identification

Cladribine impurity C - 2-chloro-7H-purin-6-amine

Alverine impurity D - N-(3-cyclohexylpropyl)-N-ethyl-3-phenylpropan-1-amine

Bisacodyl for peak identification

Loratadine impurity H - ethyl 4-oxopiperidine-1-carboxylate

Altizide

Loratadine for system suitability

Loratadine impurity F - ethyl 4-[(11RS)-8-chloro-11-fluoro-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-yl]piperidine-1-carboxylate

Danaparoid sodium

Methotrexate for peak identification