Pertussis toxin BRP

Pethidine hydrochloride - Reference Spectrum

Pethidine impurity A - 1-methyl-4-phenylpiperidine (MPP)

Phenazone

Phenazone impurity A - 5-methyl-2-phenyl-2,4-dihydro-3-pyrazol-3-one

Pheniramine impurity A - 2-Benzylpyridine

Pheniramine maleate

Phenobarbital impurity A - (5RS)-5-ethyl-2,6-diimino-5-phenyltetrahydropyrimidin-4(1H)-one

Phenobarbital impurity B - (5RS)-5-ethyl-6-imino-5-phenyldihydropyrimidine-2,4(1H,3H)-dione

Phenoxyethanol