Term Name:	hematein
Synonyms:	3,4,6a,10-tetrahydroxy-6a,7-dihydrobenzo[b]indeno[1,2-d]pyran-9(6H)-one, C.I. 75290, Haematine, Hematine, Natural black 1
Definition:	An organic heterotetracyclic compound that is -6a,7-dihydrobenzo[b]indeno[1,2-d]pyran-9-one carrying four hydroxy substituents at positions 3, 4, 6a and 10.
Ontology:	ChEBI [CHEBI:90116]  ( EBI )