Solvent Red 140
Name:C.I.Solvent Red 140,C.I.45430:2
Molecular Structure: Xanthene class
C.I.Solvent Red 140,C.I.45430:2,CAS 15905-32-5,835.89,C20H8I4O5,Ariabel Red 1200,Erythrosine Spirit Soluble
Molecular Formula:C20H8I4O5
Molecular Weight: 835.89
CAS Registry Number:15905-32-5
Manufacturing Methods :Fluorescein (C.I.Acid Yellow 73, C.L 45350) in aqueous solution or Tetraiodide in ethanol, and made the free acid form.
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 yellow precipitation. Dye aqueous solution to join sodium hydroxide have soluble precipitation. Used in cosmetics coloring.
| Standard | Light Fastness | Heat-resistant(℃) | water | Sodium Carbonate(5%) | Hydrochloric acid(5%) | |
| Melting point | Stable | |||||
| ISO | Poor | Insoluble | ||||
List of Suppliers:
Ariabel Red 1200( Durand & Huguenin SA )
Erythrosine Spirit Soluble(Simpsons (UK) Ltd)