safranin O

An organic chloride salt having 3,7-diamino-5-phenylphenazin-5-ium as the counterion. It is commonly used for staining Gram negative bacteria red in smears to contrast with the blue Gram positive organisms.

• Code: CHEBI:33601
• Source: CHEBI
• Alternative labels: 3,7-diamino-5-phenylphenazin-5-ium chloride phenosafranine 3,7-Diamino-5-phenylphenazinium chloride safranin dimethyl C.I. 50240 Phenosafranine, chloride basic red 2 Phenosafranin