Bumetanide impurity A - 3-nitro-4-phenoxy-5-sulphamoylbenzoic acid

Bumetanide impurity B - 3-amino-4-phenoxy-5-sulphamoylbenzoic acid

Bupivacaine hydrochloride

Bupivacaine impurity B - (2RS)-N-(2,6-dimethylphenyl)piperidine-2-carboxamide

Bupivacaine impurity E - 6-(butylamino)-N-(2,6-dimethylphenyl)hexanamide

Bupivacaine impurity F

Buserelin

Buserelin for NMR identification

Buserelin for peak identification

Buspirone for system suitability