1,4-Quinizarine

1,4-Dihydroxyanthraquinone/Quinizarine   C .I. NO:1,4-Dihydroxyanthraquinone CAS NO: 81-64-1 Molecular Formula: C14H8O4 Molecular Weight: 240.2109 Application:1,4-Dihydroxyanthraquinone is used to color gasoline and some heating oils. It is used as an intermediate for the synthesis of indanthrene- and alizarin-derived dyes. It is also used to form lake pigments with calcium, barium and lead. It may be used in the synthesis of cyclopentanoids by cyclization of α,β-unsaturated aldehyde with 1, 4 1,4-Dihydroxyanthraquinone. It has been studied as a long range emissive ratiometric fluorescent probe for live cell imaging. List of Suppliers: Quinizarine 1,4-Dihydroxy-anthraquinone Physical & Chemical Properties Common type :96% Product Name Quinizarine (Cas no. 81-64-1) Date:2019.06.26 Date:2019.07.26 Test item Appearance Purity Moisture Content Melting point TolueneInsoluble Substances Ash Conclusion Quality standard Deep orange powder ≥95.0% ≤1.0% 190.0-193.0℃ ≤1.5% ≤0.5% Pass 0725 Deep orange powder 96.02% 0.85% 191.3℃ 1.21% 0.45% Pass 0726 Deep orange powder 96.05% 0.90% 192.0℃ 1.30% 0.41% Pass Refine type 99% Item Specification Result Appearance Brilliant Orange Powder Brilliant Orange Powder Purity ≥99.0% 99.12% Moisture Content ≤0.5% 0.15% TolueneInsoluble Substances ≤0.5% 0.18% Ash ≤0.2% 0.06%