Description

1,1'-Bis(4-Sulfophenyl)-5,5'-Dihydroxy-3,3',A-Trimethylpyrazolo-4,4'-Trimethine Oxonole Tripotassium Salt is a high-purity, water-soluble anionic polymethine dye salt. This compound is valued for its strong and stable chromophore, making it an essential functional dye for advanced material science and analytical applications. It is primarily utilized by manufacturers and R&D laboratories in the photographic, optical, and specialty chemical industries for its light-absorbing and colorant properties.

Application

• Photosensitizer and Spectral Sensitizer in silver halide photographic films and papers.
• Functional Dye for optical data storage media and light-filtering applications.
• Laser Dye precursor or component in tunable dye lasers and optical gain media.
• Biomedical Staining agent for histological and cytological analysis.
• Analytical Chemistry Reagent for spectrophotometric detection and assay development.
• Non-linear Optical (NLO) Material research for photonic and electro-optic devices.
• Inkjet and Specialty Ink formulations requiring high lightfastness and solubility.

Basic Information

Product Name	1,1'-Bis(4-Sulfophenyl)-5,5'-Dihydroxy-3,3',A-Trimethylpyrazolo-4,4'-Trimethine Oxonole Tripotassium Salt
CAS No.	92050-35-6
Molecular Formula	C29H23K3N4O10S2
Molecular Weight	768.94 g/mol
Synonyms	Pyrazolotrimethine Oxonole Dye, Tripotassium Salt; 92050-35-6; 1,1'-Bis(p-sulfophenyl)-5,5'-dihydroxy-3,3',A-trimethylpyrazolo-4,4'-trimethine oxonole tripotassium salt; Anionic Polymethine Dye; Oxonol Dye V; Photosensitizing Dye; Spectral Sensitizing Dye; Trimethineoxonol Tripotassium Salt
EINECS	Contact for details

Quality Control

Our production of this specialty dye adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is characterized using advanced analytical techniques including HPLC, UV-Vis spectroscopy, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and relevant physicochemical parameters is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed in a low-humidity environment to prevent degradation and clumping.

Specification

Item	Specification
Appearance	Dark green to black powder
Identification (UV-Vis)	Conforms
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear, complete solution

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