Description

Gallocyanine, Chloride Free CAS NO 524-26-5 is a high-purity, chloride-free variant of the classic gallocyanine dye, a synthetic organic compound belonging to the oxazine class. This specific formulation is critical for applications where the presence of chloride ions can interfere with sensitive chemical reactions or analytical processes. It is an essential reagent for research and industrial laboratories, particularly in the fields of histology, microscopy, and as a redox indicator in analytical chemistry.

Application

• Biological Staining: Widely used as a nuclear and Nissl stain in histology and neuroanatomy for visualizing neurons and cell structures under a microscope.
• Analytical Chemistry: Serves as a sensitive redox indicator in titrimetric analysis, especially in cerimetry and other oxidation-reduction reactions.
• Material Science Research: Employed in the study of dye-sensitized solar cells (DSSCs) and other photoelectrochemical systems due to its light-absorbing properties.
• Ink and Dye Formulation: Used as a colorant in specialized inks and for dyeing textiles, where its chloride-free nature ensures product stability and color fidelity.
• Educational and Research Reagent: A standard compound in university and industrial research labs for teaching and experimental protocols involving staining techniques or electrochemical studies.

Basic Information

Product Name	Gallocyanine, Chloride Free
CAS No.	524-26-5
Molecular Formula	C15H12ClN3O5
Molecular Weight	349.73 g/mol
Synonyms	Gallocyanine; Gallocyanine (Chloride Free); 7-Amino-4-hydroxy-3-(4-hydroxy-2-methyl-5-(((4-methylphenyl)sulfonyl)oxy)phenyl)azo)naphthalene-2-sulfonic acid; CI 51030; Gallocyanin; NSC 402868; Gallocyanine O; Mordant Blue 10 (related complex)
EINECS	208-353-4

Quality Control

Our Gallocyanine, Chloride Free is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high chemical purity. Each lot is tested to confirm identity, potency, and the absence of interfering impurities like residual chloride. A comprehensive Certificate of Analysis (COA) detailing purity (typically >95% by HPLC), physical characteristics, and spectroscopic data is provided with every shipment to support your quality assurance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive and should be handled under appropriate conditions to prevent degradation.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Chloride Content	≤ 0.1%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%

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