Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name:C.I.Fluorescent Brightener 155,C.I.45555

Molecular Structure: Xanthene

C.I.Fluorescent Brightener 155,C.I.45555,CAS 6250-49-3,354.40,C24H18O3

Molecular Formula:C₂₄H₁₈O₃

Molecular Weight: 354.40

CAS Registry Number:6250-49-3

Manufacturing Methods :p-Cresol (2 Moore) and Phthalic anhydride (1 Moore) condensation, its product in 24% fuming sulfuric acid central change, reoccupy zinc and sodium hydroxide in the Azabenzene reduction, garnish with Acetic anhydride acetylation

Properties and Applications:green. Used for oil. Soluble in hydrocarbon, the solution to thermal and light stability; Also dissolve in alcohol, esters, ketones and plasticizer.

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