2-Anilino-3-methyl-6-(di-n-amylamino)fluoran;2-Anilino-3-methyl-6-N,N-dipentylaminofluoran;3-Di-n-pentylamino-6-methyl-7-anilinofluoran;3-Diamylamino-6-methyl-7-anilinofluoran;3-Dipentylamino-6-methyl-7-anilinofluoran; BK 305; BK 305 Black; Yamada Black305