Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name: 4,5Dihydroxynaphthalene-1-sulfonic acid CA Name: 1-Naphthalenesulfonic acid,4,5-dihydroxy- Molecular Structure: Molecular Formula:C10H8O5S Molecular Weight: 240.23 CAS Registry Number: 83-65-8

Name: 5-Oxo-1-(2-sulfophenyl)-2,5-dihydro-1H-pyrazole-3-carboxylic acid CA Name: 1H-Pyrazole-3-carboxylic acid,4,5-dihydro-5-oxo-1-(2-sulfophenyl)- Molecular Structure: Molecular Formula:C10H8N2O6S Molecular Weight: 284.25 CAS Registry Number: 6402-05-7

Name: 5-Oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid CA Name: 1H-pyrazole-3-carboxylic acid,4,5-dihydro-5-oxo-1-(4-sulfophenyl)- Molecular Structure: Molecular Formula:C10H8N2O6S Molecular Weight: 284.25 CAS Registry Number: 118-47-8

Name: 5-Oxo-1-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylic acid CA Name: 1H-pyrazole-3-carboxylic acid,4,5-dihydro-5-oxo-1-phenyl- Molecular Structure:   Molecular Formula:C10H8N2O3 Molecular Weight: 204.18 CAS Registry Number: 119-18-6

Name: 3,5-Diamino-2,4,6-trimethylbenzenesulfonic acid CA Name: Benzenesulfonic acid,3,5-diamino-2,4,6-trimethyl- Molecular Structure: Molecular Formula:C9H14N2O3S Molecular Weight: 230.28 CAS Registry Number: 32432-55-6