Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name:C.I.Pigment Red 37,C.I.21205 Molecular Structure: Double azo Molecular Formula:C36H34N8O4 Molecular Weight: 642.71 CAS Registry Number:6883-91-6

Name:C.I.Pigment Red 32,C.I.12320 Molecular Structure: Single azo Molecular Formula:C31H24N4O4 Molecular Weight: 516.55 CAS Registry Number:6410-29-3

Name:C.I.Pigment Red 31,C.I.12360 Molecular Structure: Single azo Molecular Formula:C31H23N5O6 Molecular Weight: 561.54 CAS Registry Number:6448-96-0

Name:C.I.Pigment Red 30,C.I.12330 Molecular Structure: Single azo Molecular Formula:C33H27ClN4O3 Molecular Weight: 563.05 CAS Registry Number:6471-48-3

Name:C.I.Pigment Red 23,C.I.12355 Molecular Structure: Single azo Molecular Formula:C24H17N5O7 Molecular Weight: 487.42 CAS Registry Number:6471-49-4