The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/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.
An organic cation that is 3,4-dihydroxyphenoxazin-5-ium carrying additional carbamoyl and diethylamino groups at positions 1 and 7 respectively. The chloride salt is the histological dye 'Celestin blue B'.
Celestin blue B cation; Formula=C17H18N3O4; InChI=1S/C17H17N3O4/c1-3-20(4-2)9-5-6-11-13(7-9)24-16-14(19-11)10(17(18)23)8-12(21)15(16)22/h5-8H,3-4H2,1-2H3,(H3-,18,19,21,22,23)/p+1; InChIKey=YAWTZTDMXHYGQM-UHFFFAOYSA-O; SMILES=C1=2C=CC(=CC1=[O+]C3=C(N2)C(=CC(=C3O)O)C(=O)N)N(CC)CC