Basic Blue 7

Name: Basic Blue 7

CAS: 2390-60-5

EINECS: 219-232-0

MF: C₃₃H₄₀ClN₃

MW: 514.15

MP: Not Available (decomposes at high temperature)

BP: Not Available

Density: Not Available

Appearance: Brilliant golden-brown powder (brown to dark red powder / crystal)

Purity: Dye content 90% min; color strength 100%±5%; λmax 613–619 nm (water); E¹%₁cm ≥1100

Package: 500g, 1000g, 10kg, bulk package (25kg cartons / drums)

Application: Triarylmethane basic dye for dyeing paper, silk and acrylic (polyacrylonitrile) fibers; key colorant for ballpoint pen inks and typewriter ribbons; biological stain for histology and hematology; diagnostic assay manufacturing; hair dye colorant in cosmetics; leather dyeing; colorant for detergents and stationery.

Other name: Victoria Pure Blue BO; Basic Blue BO; C.I. 42595; bis[4-(Diethylamino)phenyl][4-(ethylamino)naphthalen-1-yl]methylium chloride; N-[4-[[4-(Diethylamino)phenyl][4-(ethylamino)-1-naphthalenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethylethanaminium chloride

Storage: Store at room temperature in a tightly sealed container, in a cool, dry and well-ventilated place. Hygroscopic — protect from moisture. Keep away from strong oxidizing agents and direct sunlight. Slightly soluble in cold water, soluble in hot water, very soluble in ethanol.

Production & Supply: Stable industrial-scale production with ample stock. Sample orders ship within 1–3 working days after payment; bulk quantities (25kg cartons / drums) available upon request.

Company Introduction: ALFA (Zhengzhou, Henan, China) is a professional supplier of fine chemicals, basic dyes and colorants for inks and stationery. We provide quality-tested products, flexible packaging and reliable worldwide delivery. Custom specifications and bulk quotations are welcome.