2150-48-3 Ammonium, (6-diethylamino-3H-xanthen-3-ylidene)diethyl-, chloride Ammonium, [6-(diethylamino)-3H-xanthen-3-ylidene]diethyl-, chloride C.I. 45010 Ethanaminium, N-[6-(diethylamino)-3H-xanthen-3-ylidene]-N-ethyl-, chloride NSC44690 Pyronin B Pyronine B Pyronine B(By) Pyronine B, purified