Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3- one,4,7-dichloro-3',6'-dihydroxy-2',4',5',7'- tetraiodo-
Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3- one,4,7-dichloro-3',6'-dihydroxy-2',4',5',7'- tetraiodo- Basic information
- Product Name:
- Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3- one,4,7-dichloro-3',6'-dihydroxy-2',4',5',7'- tetraiodo-
- Synonyms:
-
- Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3- one,4,7-dichloro-3',6'-dihydroxy-2',4',5',7'- tetraiodo-
- C.I.Solvent Red 47:C.I.45435:1
- Solvent Red 47
- CAS:
- 6859-68-3
- MF:
- C20H6Cl2I4O5
- MW:
- 904.78252
- Mol File:
- 6859-68-3.mol
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Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3- one,4,7-dichloro-3',6'-dihydroxy-2',4',5',7'- tetraiodo- Usage And Synthesis
Preparation
4,7 – dichloro-fluorescein with iodine in potassium (or sodium) and the presence of copper chloride tetraiodide.
Properties and Applications
blue light red. Soluble in water for cherry red, no fluorescence. In concentrated sulfuric acid for brown light yellow, dilution after brown light red precipitation. Dye aqueous solution to join sodium hydroxide have carmine soluble precipitation
| Standard | Light Fastness | Heat-resistant(℃) | water | Sodium Carbonate(5%) | Hydrochloric acid(5%) | |
| Melting point | Stable | |||||
| ISO | General | Insoluble | Good | |||