Pyrocatechol violet

Molecular Formula: C₁₉H₁₄O₇S

InChI: InChI=1/C19H14O7S/c20-14-7-5-11(9-16(14)22)19(12-6-8-15(21)17(23)10-12)13-3-1-2-4-18(13)27(24,25)26-19/h1-10,20-23H

InChIKey: InChIKey=RRRCKIRSVQAAAS-UHFFFAOYAU
SMILES: C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC(=C(C=C3)O)O)C4=CC(=C(C=C4)O)O

Names:
    AI3-63038
    Catechol violet
    EINECS 204-088-3
    NSC 622476
    NSC 8805
    Pyrocatechinsulfonephthalein
    Pyrocatechol violet
    1,2-Benzenediol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis-
    115-41-3
    3H-2,1-Benzoxathiole, 3,3-bis(3,4-dihydroxyphenyl)-, 1,1-dioxide
    4-[9-(3,4-dihydroxyphenyl)-7,7-dioxo-8-oxa-7λ6-thiabicyclo[4.3.0]nona-1,3,5-trien-9-yl]benzene-1,2-diol

Registries:
    PubChem CID 66993
    PubChem ID 209098