Synonyms:
2,2'-dimercapto-4,4',6,6'-tetrahydroxy-pyrimidino-5,5'pentamethine oxonole ; 5-[5-(hexahydro-4,6-dioxo-2-thioxopyrimidin-5-yl)-2,4-pentadienylidene]dihydro-2-thioxo-1h,5h-pyrimidine-4,6-dione ; dye bch 3221 ; 1-(4-oxo-6-hydroxy-2-thioxo-2,3,4,5-tetrahydro-pyrimido-5-yliden)-5-(4,6-dioxo-2-thioxo-hexahydro-pyrimido-5-yl)-pentadiene-2,4 ; 5-[5-[(hexahydro-4,6-dioxo-2-thioxopyrimidin)-5-yl]-2,4-pentadien-1-ylidene]dihydro-2-thioxo-4,6(1h,5h)-pyrimidinedione ; 5-[5-[(hexahydro-4,6-dioxo-2-thioxopyrimidin)-5-yl]-2,4-pentadienylidene]-2,3-dihydro-2-thioxo-4,6(1h,5h)-pyrimidinedione ; 4,6(1h,5h)-pyrimidinedione,5-[5-(hexahydro-4,6-dioxo-2-thioxo-5-pyrimidinyl)-2 ; dihydrotetrahydrohydroxyoxothioxopyrimidinylpentadienylide
