Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name:C.I.Pigment Red 10,C.I.12440

Molecular Structure: Single azo

C.I.Pigment Red 10,C.I.12440,CAS 6410-35-11,450.32,C24H17Cl2N3O2,Permanent Red FRL

Molecular Formula:C₂₄H₁₇Cl₂N₃O₂

Molecular Weight: 450.32

CAS Registry Number:6410-35-11

Manufacturing Methods : 2,5-Dichlorobenzenamine diazotization, and 3-Hydroxy-N-p-tolyl-2-naphthamide coupling

Properties and Applications:yellow red, pale pink. Red powder, melting point 295 ℃. In concentrated sulfuric acid to red light purple, dilution have orange red precipitation; In concentrated nitric acid for yellow big red, to yellow, In the sodium hydroxide solution does not change color. Light fastness 7 ~ 8 level, water resistance 4 ~ 5 grades, acid-proof alkaline 4 ~ 5 grades, resistance to ethanol, kerosene and xylene are level 2. Mainly used for coating and printing ink color, also can be used for rubber, paint, emulsion coating, coating and cosmetics.

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Permanent Red FRL(Hoechst A G)