| Identification | Back Directory | [Name]
3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid | [CAS]
83-61-4 | [Synonyms]
NSC 56653
3-Alizarinsulfonic acid
Alizarin Red S free acid
1,2-Dihydroxy-3-sulfoanthraquinone
130-22-3 (Mono-hydrochloride salt)
3,4-Dihydroxy-2-anthraquinonesulfonic acid
2-Anthraquinonesulfonic acid, 3,4-dihydroxy-
1,2-Dihydroxy-3-sulfonate-9,10-anthraquinone
3,4-Dihydroxy-9,10-anthraquinone-2-sulfonic acid
3,4-Dihydroxy-9,10-dioxo-2-anthracenesulfonic acid
3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid
1,2-Dihydroxy-9,10-dihydro-9,10-dioxoanthracene-3-sulfonic acid
1,2-Dihydroxy-9,10-dioxo-9,10-dihydroanthracene-3-sulfonic acid
2-Anthracenesulfonic acid, 9,10-dihydro-3,4-dihydroxy-9,10-dioxo- | [Molecular Formula]
C14H8O7S | [MOL File]
83-61-4.mol | [Molecular Weight]
320.27 |
| Chemical Properties | Back Directory | [density ]
1.792±0.06 g/cm3(Predicted) | [solubility ]
Aqueous Base (Slightly), DMSO (Slightly, Heated), Methanol (Slightly, Heated) | [form ]
Solid | [pka]
-1.33±0.20(Predicted) | [color ]
Dark Orange to Dark Red | [Stability:]
Hygroscopic |
| Hazard Information | Back Directory | [Definition]
ChEBI: A dihydroxyanthraquinone that is 1,2-dihydroxyanthraquinone compound carrying an additional sulfo substituent at the 3-position. The monosodium salt is the biological stain 'alizarin red S'. | [Synthesis]
1,2-Dihydroxyanthraquinone-3-sulfonic
acid is prepared from
1,2-dihydroxyanthraquinone with fuming sulfuric
acid . |
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