Description

9-(2-Carboxyphenyl)-3,6-Bis(Diethylamino)Xanthylium [8-[(5-Chloro-2-Hydroxyphenyl)Azo]-7-Hydroxynaphthalene-1,3-Disulphonato(4-)]Chromate(1-) is a complex, high-value chromate salt dye intermediate. This compound matters for its role as a precise colorant precursor, enabling the production of specialized dyes and pigments with specific hue and stability properties. Industrial manufacturers and R&D laboratories in the dye, pigment, and specialty chemical sectors require this material for developing advanced coloring agents and for analytical research purposes.

Application

• Specialty Dye Synthesis: As a key intermediate in the production of complex cationic (basic) dyes and xanthene dyes.
• Pigment Manufacturing: Used in the synthesis of high-performance organic pigments for inks, coatings, and plastics.
• Analytical Chemistry: Serves as a reference standard or reagent in chromatographic analysis and method development.
• Research & Development: Utilized in academic and industrial R&D for exploring new chromogenic compounds and photophysical properties.
• Textile Dyeing: Potential application in the formulation of specialized dyes for synthetic fibers requiring high color fastness.
• Biological Staining: May be investigated for use in histological stains due to its xanthene core structure.

Basic Information

Product Name	9-(2-Carboxyphenyl)-3,6-Bis(Diethylamino)Xanthylium [8-[(5-Chloro-2-Hydroxyphenyl)Azo]-7-Hydroxynaphthalene-1,3-Disulphonato(4-)]Chromate(1-)
CAS No.	85392-61-6
Molecular Formula	C46H42ClCrN4O11S2
Molecular Weight	954.41 g/mol
Synonyms	Basic Red 1:1 Chromate Complex; C.I. 45175:1; Rhodamine B Chromate; 9-(2-Carboxyphenyl)-3,6-bis(diethylamino)xanthylium, inner salt, chromate(1-); [8-[(5-Chloro-2-hydroxyphenyl)azo]-7-hydroxy-1,3-naphthalenedisulfonato(4-)]chromate(1-); Rhodamine B lake; Chromate(1-), [8-[(5-chloro-2-hydroxyphenyl)azo]-7-hydroxy-1,3-naphthalenedisulfonato(4-)]-, 9-(2-carboxyphenyl)-3,6-bis(diethylamino)xanthylium
EINECS	Contact for details

Quality Control

Our production of this specialty chemical adheres to strict quality management protocols to ensure batch-to-batch consistency and purity. Each lot is characterized using advanced analytical techniques including HPLC, UV-Vis, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark green to black powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Chromium Content	Contact for details
Solubility	Soluble in polar organic solvents; slightly soluble in water

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.