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Product Name 3-(4-Dimethylamino-2-hydroxy-phenyl)-5-(4-dimethylimmonium-2- hydroxy- cyclohexa-2,5-dien-1-ylidene)-1,2-dioxo-cyclopenten- 4-olate cyclopentenylium-2-olate
CAS Number 93754-63-3
Molecular Formula C21H20N2O5
Molecular Weight (g/mol) 380.40
Melting Point oC >360 (DCS) 253 (Dec)
Solubility Soluble in Chlorinated Hydrocarbons
Appearance Grey Brown Needles
Application Purified Pigment for Electrophotography
Absorption Maximum (nm) 817
Extinction Coefficient 194984
Absorptivity (L.g-1cm-1) 513
U0 0.86 V (vs SCE, CH2Cl2)
Reduction Potential -0.23 v (vs SCE, Methylene chloride
Oxidation Potential 0.86 V (vs SCE, Methylene chloride
Comments Purified pigment with very low content of soluble impurities.