Term Name:	haematoxylin
Synonyms:	7,11b-dihydrobenz[b]indeno[1,2-d]pyran-3,4,6a,9,10(6H)-pentol, 7,11b-dihydroindeno[2,1-c]chromene-3,4,6a,9,10(6H)-pentol, C.I. 75290, Haematoxylin, hematoxilina, hematoxylin, hematoxyline, Natural black 1
Definition:	An organic heterotetracyclic compound 7,11b-dihydroindeno[2,1-c]chromene carrying five hydroxy substituents at positions 3, 4, 6a, 9 and 10. The most important and most used dye in histology, histochemistry, histopathology and in cytology.
Ontology:	ChEBI [CHEBI:51686]  ( EBI )