| Legal color: | Blue No.204 | General name: | Carbanthrene Blue | Class: | Vat Dye | FDA : | D & C Blue No.9 | CI #: | C.I. 69825 | Color #: | Vat Blue 6 | CAS #: | 130-20-1 | CAS : | ：5,9,14,18-Anthrazinetetrone,7,16-dichloro-6,15-dihydro-| IUPAC: | →1;7,16-Dichloro-6,15-dihydroxyanthrazine-5,9,14,18-tetraone
→2;7,16-Dichloro-6,15-dihydroxy-5,9,14,18-anthrazinetetrone |
| Chemical structure : |  
Carbanthrene Blue |
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