|
| D&CORANGENO.16 Basic information |
Product Name: | D&CORANGENO.16 | Synonyms: | D&CORANGENO.16;4',5'-Dibromo-3',6'-dihydroxy-2',7'-diiodospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one;C.I.45371;C.I.Solvent Orange 18;D and C Orange No.16;2-(4,5-Dibromo-2,7-diiodo-3-oxo-6-hydroxy-3H-xanthen-9-yl)benzoic acid;4',5'-dibromo-3',6'-dihydroxy-2',7'-diiodo-spiro[phthalan-1,9'-xanthen]-3-one;Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 4',5'-dibromo-3',6'-dihydroxy-2',7'-diiodo- | CAS: | 31544-98-6 | MF: | C20H8Br2I2O5 | MW: | 741.89 | EINECS: | | Product Categories: | | Mol File: | 31544-98-6.mol | |
| D&CORANGENO.16 Chemical Properties |
Boiling point | 628.1±55.0 °C(Predicted) | density | 2.73±0.1 g/cm3(Predicted) | pka | 7.09±0.20(Predicted) |
| D&CORANGENO.16 Usage And Synthesis |
Preparation | preparation??and?C.I. .Solvent Red 42?and similar (2,4-Dichlororesorcinol?(2 Moore) and?Phthalic anhydride?(1 Moore) with Sodium hydroxide extraction condensation, segregation out 2 ‘, 4 ‘, 5 ‘, 7 ‘- tetrachloro-fluorescein, then use hydrochloric acid acidification. | Properties and Applications | brilliant orange. Insoluble in water, slightly soluble in alcohol, soluble in 5% sodium carbonate solution. In concentrated sulfuric acid to yellow, dilution have orange precipitation; In 10% sodium hydroxide solution for pink.
Standard
|
Light Fastness
|
Heat-resistant(℃)
|
water
|
Sodium Carbonate(5%)
|
Hydrochloric acid(5%)
|
Melting point
|
Stable
|
ISO
|
|
|
|
Insoluble
|
Dissolve
|
|
|
| D&CORANGENO.16 Preparation Products And Raw materials |
|