Description

Bathocuproine-4,4'-Disulfonic Acid CAS NO 31037-51-1 is a high-purity, water-soluble derivative of the classic copper(I)-specific chelator, bathocuproine. Its core value lies in its enhanced solubility in aqueous systems, making it an indispensable analytical reagent for the sensitive and selective spectrophotometric determination of copper(I) ions. This compound is critically needed by analytical laboratories, R&D facilities, and quality control departments in industries such as pharmaceuticals, environmental monitoring, and metallurgy. Its disulfonic acid groups provide superior performance in aqueous matrices compared to the parent compound.

Application

• Spectrophotometric Copper(I) Assay: Primary application as a chromogenic agent for the quantitative detection and measurement of cuprous ions (Cu⁺) in solution.
• Pharmaceutical Analysis: Used in the quality control of drug substances and products to trace residual copper catalysts or copper content.
• Environmental Testing: Employed in water and soil analysis kits to monitor bioavailable copper(I) species for environmental compliance and studies.
• Biochemical Research: Serves as a selective chelator in enzymatic studies and cell culture media to investigate copper-dependent biological processes.
• Industrial Process Control: Applied in monitoring copper levels in electroplating baths, semiconductor etching solutions, and catalytic processes.
• Material Science: Utilized in the development and analysis of copper-based nanomaterials and conductive inks.

Basic Information

Item	Details
Product Name	Bathocuproine-4,4'-Disulfonic Acid
CAS No.	31037-51-1
Molecular Formula	C₂₆H₂₀N₂O₆S₂
Molecular Weight	504.57 g/mol
Synonyms	Bathocuproinedisulfonic acid; 2,9-Dimethyl-4,7-diphenyl-1,10-phenanthroline-4',4''-disulfonic acid; BCS (Bathocuproine disulfonate); Cuprous ion indicator; Copper(I) chelator; Disodium bathocuproinedisulfonate (common salt form); 4,7-Diphenyl-2,9-dimethyl-1,10-phenanthrolinedisulfonic acid
EINECS	Contact for details

Quality Control

Our Bathocuproine-4,4'-Disulfonic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets the high standards required for analytical and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after use to prevent absorption of atmospheric moisture, which can affect purity and performance.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
UV-Vis Absorbance	Conforms (λmax ~ 479 nm in suitable buffer)
Water Content (KF)	≤ 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.