dye|World dye variety

Name:C.I.Direct Blue 231,C.I.23830 Molecular Structure: Double azo class Molecular Formula:C34H26N6Na2O8S2 Molecular Weight: 756.72 CAS Registry Number:2609-87-2

Name:C.I.Direct Blue 230,C.I.22455 Molecular Structure: Double azo class Molecular Formula:C32H20N5Na3O11S3 Molecular Weight: 815.7 CAS Registry Number:6527-65-7

Name:C.I.Direct Blue 226,C.I.22800 Molecular Structure: Double azo class Molecular Formula:C34H18N6Na6O18S4 Molecular Weight: 1064.74 CAS Registry Number:12768-86-4

Name:C.I.Direct Blue 218,C.I.24401 Molecular Structure: Double azo,Metal Complexes Molecular Formula:C34H24N6Na4O16S4 Molecular Weight: 992.81 CAS Registry Number:28407-37-6

Name:C.I.Direct Blue 215,C.I.24415 Molecular Structure: Double azo class Molecular Formula:C40H29N6Na3O13S3 Molecular Weight: 966.86 CAS Registry Number:6771-80-8