Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name:C.I.Pigment Red 52,C.I.15860

Molecular Structure: Single azo

C.I.Pigment Red 52,C.I.15860,CAS 5858-82-2,1325-11-7,464.79,C18H11ClN2Na2O6S

Molecular Formula:C₁₈H₁₁ClN₂Na₂O₆S

Molecular Weight: 464.79

CAS Registry Number:5858-82-2,1325-11-7

Manufacturing Methods : 2-Amino-5-chloro-4-methylbenzenesulfonic acid diazotization, and 3-Hydroxy-2-naphthoic acid coupling.

Properties and Applications:brilliant red. Soluble in water for yellow red, not soluble in ethanol. Pigment aqueous solution with concentrated hydrochloric acid has dark red precipitation.

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