Rhodamine B, butyl ester

9-[2-(Butoxycarbonyl)phenyl]-3,6-bis(diethylamino) xanthylium chloride

Xanthylium,9-[2-(butoxycarbonyl)phenyl]-3,6-bis(diethylamino)-, chloride (1:1)

[9-(2-Butoxycarbonylphenyl)-6-(diethylamino)-3H-xanthen-3-ylidene]diethylammonium chloride