Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name:C.I.Pigment Green 4,C.I.42000:2

Molecular Structure: triarylmethane

C.I.Pigment Green 4,C.I.42000:2,CAS 61725-50-6,330.47,C23H26N2,Fast Green Lake,Fanatone Green M

Molecular Formula:C₂₃H₂₆N₂

Molecular Weight: 330.47

CAS Registry Number:61725-50-6

Manufacturing Methods :(a) in the presence of sulfuric acid or hydrochloric acid Benzaldehyde (1 mol) and N,N-dimethylaniline (2 Moore) condensation, then use Lead dioxide and acid oxidation its product, and phosphorus molybdenum acid lake change; (b) N,N-dimethylaniline andBenzaldehyde heating, and phosphorus molybdenum acid lake change.

Properties and Applications:brilliant green. Soluble in water for cyan, soluble in ethanol for cyan. In concentrated sulfuric acid for yellow, dilution after dark orange. Pigment solution with sodium hydroxide have green white precipitation. And C.I.Basic Green 4 same chemical structure.

List of Suppliers:

Everbright Fast Green Lake 5210 (Sinochem Shanghai I/E Corp/Schecho PuDong Corporation)

Fanatone Green M( Kaseihin Kogyo Kyokai )

Fast Green Lake(Fenchem Enterprises Ltd)