Send us a Message

Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   


The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC BY 3.0, For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.

go back to main search page
Accession:CHEBI:51686 term browser browse the term
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.
Synonyms:exact_synonym: 7,11b-dihydroindeno[2,1-c]chromene-3,4,6a,9,10(6H)-pentol
 related_synonym: 7,11b-dihydrobenz[b]indeno[1,2-d]pyran-3,4,6a,9,10(6H)-pentol;   C.I. 75290;   Formula=C16H14O6;   InChI=1S/C16H14O6/c17-10-2-1-8-13-9-4-12(19)11(18)3-7(9)5-16(13,21)6-22-15(8)14(10)20/h1-4,13,17-21H,5-6H2;   InChIKey=WZUVPPKBWHMQCE-UHFFFAOYSA-N;   Natural black 1;   SMILES=Oc1cc2CC3(O)COc4c(O)c(O)ccc4C3c2cc1O;   hematoxilina;   hematoxylin;   hematoxyline
 xref: Beilstein:91399;   CAS:17647-60-8;   PMID:11677809;   PMID:12751322;   PMID:18411731;   PMID:19579146;   Reaxys:91399

show annotations for term's descendants           Sort by:

Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19921
    role 19896
      application 19732
        dye 2962
          histological dye 258
            haematoxylin 0
              (+)-haematoxylin 0
              (-)-haematoxylin 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19921
    subatomic particle 19919
      composite particle 19919
        hadron 19919
          baryon 19919
            nucleon 19919
              atomic nucleus 19919
                atom 19919
                  main group element atom 19867
                    p-block element atom 19867
                      carbon group element atom 19812
                        carbon atom 19807
                          organic molecular entity 19807
                            organic molecule 19764
                              organic cyclic compound 19572
                                organic aromatic compound 19436
                                  phenols 18683
                                    polyphenol 9426
                                      haematoxylin 0
                                        (+)-haematoxylin 0
                                        (-)-haematoxylin 0
paths to the root