dye|World dye variety

Name:C.I.Direct Blue 23,C.I.24405 Molecular Structure: Double azo class Molecular Formula:C40H29N6Na3O13S3 Molecular Weight: 966.86 CAS Registry Number:6771-79-5

Name:C.I.Direct Blue 22,C.I.24280 Molecular Structure: Double azo class Molecular Formula:C34H25N5Na2O10S2 Molecular Weight: 773.7 CAS Registry Number:2586-57-4

Name:C.I.Direct Blue 21,C.I.23710 Molecular Structure: Double azo class Molecular Formula:C34H24N5Na3O11S3 Molecular Weight: 843.75 CAS Registry Number:6420-09-3

Name:C.I.Direct Blue 19,C.I.22485 Molecular Structure: Double azo class Molecular Formula:C32H21N5Na2O8S2 Molecular Weight: 713.65 CAS Registry Number:6426-68-2

Name:C.I.Direct Blue 16,C.I.22475 Molecular Structure: Double azo class Molecular Formula:C32H20N5Na3O11S3 Molecular Weight: 815.70 CAS Registry Number:6426-66-0