Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name: 7-Aminonaphthalene-2-sulfonic acid CA Name: 2-Naphthalenesulfonic acid,7-amino- Molecular Structure: Molecular Formula:C10H9NO3S Molecular Weight: 223.25 CAS Registry Number: 494-44-0

Name: 5-Aminonaphthalene-2-sulfonic acid CA Name: 2-Naphthalenesulfonic acid,5-amino- Molecular Structure: Molecular Formula:C10H9NO3S Molecular Weight: 223.25 CAS Registry Number: 119-79-9

Name: 4,7-Dihydroxynaphthalene-2-sulfonic acid CA Name: 2-Naphthalenesulfonic acid,4,7-dihydroxy- Molecular Structure: Molecular Formula:C10H8O5S Molecular Weight: 240.23 CAS Registry Number: 6357-94-4

Name: 4,6-Dihydroxynaphthalene-2-sulfonic acid CA Name: 2-Naphthalenesulfonic acid,4,6-dihydroxy- Molecular Structure: Molecular Formula:C10H8O5S Molecular Weight: 240.23 CAS Registry Number: 6357-93-3

Name: 4-Hydroxynaphthalene-2-sulfonic acid CA Name: 2-Naphthalenesulfonic acid,-4-hydroxy- Molecular Structure: Molecular Formula:C10H8O4S Molecular Weight: 224.23 CAS Registry Number: 3771-14-0