Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name:C.I.Pigment Red 257,C.I.562700 Molecular Structure: Heterocycle Molecular Formula:C8H3Cl4N3O Molecular Weight: 298.94 CAS Registry Number:117989-29-4/70833-37-3

Name:C.I.Pigment Red 256,C.I.124635 Molecular Structure: Single azo Molecular Formula:C26H22Cl2N4O5S Molecular Weight: 573.45 CAS Registry Number:

Name:C.I.Pigment Red 255,C.I.561050 Molecular Structure: Pyrrole dione Molecular Formula:C18H12N2O2 Molecular Weight: 288.30 CAS Registry Number:120500-90-5

Name:C.I.Pigment Red 254,C.I.56110 Molecular Structure: Pyrrole dione Molecular Formula:C18H10Cl2N2O2 Molecular Weight: 357.19 CAS Registry Number:122390-98-1/84632-65-5

Name:C.I.Pigment Red 253,C.I.12375 Molecular Structure: Single azo Molecular Formula:C25H20Cl2N4O4S Molecular Weight: 543.42 CAS Registry Number:85776-13-2