dye|World dye variety

Name:C.I.Direct Black 22:1 Molecular Structure: Multi-azo class Molecular Formula: Molecular Weight: CAS Registry Number:

Name:C.I.Direct Black 22,C.I.35435 Molecular Structure: Multi-azo class Molecular Formula:C44H32N13Na3O11S3 Molecular Weight: 1083.97 CAS Registry Number:6473-13-8

Name:C.I.Direct Black 21,C.I.31580 Molecular Structure: trisazo class Molecular Formula:C35H26N9Na3O9S2 Molecular Weight: 849.74 CAS Registry Number:6428-51-9

Name:C.I.Direct Black 20,C.I.30395 Molecular Structure: trisazo class Molecular Formula:C38H32N10Na2O10S2 Molecular Weight: 898.83 CAS Registry Number:7237-47-0

Name:C.I.Direct Black 19:1 Molecular Structure: Multi-azo class Molecular Formula: Molecular Weight: CAS Registry Number: