dye|World dye variety

Name:C.I.Direct Black 13,C.I.30025 Molecular Structure: trisazo class Molecular Formula:C28H20N10Na2O9S2 Molecular Weight: 750.63 CAS Registry Number:71902-05-1

Name:C.I.Direct Black 11,C.I.30240 Molecular Structure:trisazo class Molecular Formula:C34H24ClN9Na2O7S2 Molecular Weight: 816.18 CAS Registry Number:

Name:C.I.Direct Black 10,C.I.31545 Molecular Structure: trisazo class Molecular Formula:C32H28N10Na2O6S Molecular Weight: 726.67 CAS Registry Number:8005-82-1

Name:C.I.Direct Black 9,C.I.31560/31565 Molecular Structure: trisazo class Molecular Formula:C32H23N9Na2O7S2 Molecular Weight: 755.69 CAS Registry Number:8003-62-1

Name:C.I.Direct Black 4,C.I.30245 Molecular Structure: trisazo class Molecular Formula:C35H27N9Na2O7S2 Molecular Weight: 795.76 CAS Registry Number:2429-83-6