Description

Bathophenanthrolinedisulfonic Acid Disodium Salt Trihydrate is a high-purity analytical reagent and chelating agent. Its primary value lies in its exceptional selectivity and sensitivity for the spectrophotometric determination of trace iron (Fe²⁺), making it a critical component in analytical chemistry and quality control protocols. This product is essential for researchers, analytical laboratories, and manufacturers in the pharmaceutical, environmental testing, and food & beverage industries who require precise metal ion quantification.

Application

• Spectrophotometric Iron Assay: Primary reagent for the highly sensitive colorimetric detection and quantification of ferrous iron (Fe²⁺) in solution.
• Pharmaceutical QC & Research: Used in purity testing of active pharmaceutical ingredients (APIs), excipients, and finished drug products for trace metal contamination.
• Environmental Analysis: Determination of iron levels in water samples, soil extracts, and industrial effluents for environmental monitoring and compliance.
• Food & Beverage Industry: Analysis of iron content and fortification levels in nutritional products, beverages, and food raw materials.
• Biochemical Research: Chelating agent in studies of iron metabolism, enzyme kinetics, and metal-protein interactions.
• Industrial Process Control: Monitoring iron concentrations in chemical manufacturing processes, high-purity water systems, and semiconductor production.

Basic Information

Product Name	Bathophenanthrolinedisulfonic Acid Disodium Salt Trihydrate
CAS No.	52746-49-3
Molecular Formula	C24H14N2Na2O6S2 · 3H2O
Molecular Weight	576.53 g/mol (Trihydrate)
Synonyms	4,7-Diphenyl-1,10-phenanthrolinedisulfonic Acid Disodium Salt Trihydrate; Bathophenanthrolinedisulfonic Acid Sodium Salt; Disodium 4,7-diphenyl-1,10-phenanthrolinedisulfonate trihydrate; FerroZine Iron Reagent; BPDS; Bathophenanthroline Disulfonate Sodium Salt
EINECS	Contact for details

Quality Control

Our Bathophenanthrolinedisulfonic Acid Disodium Salt Trihydrate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity, consistent performance, and compliance with reagent-grade specifications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, assay, and related substance tests is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and light-sensitive; ensure the container is sealed tightly after each use to prevent degradation and absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	8.0 - 11.0% (Theoretical for Trihydrate: ~9.4%)
Absorbance Ratio (A535/A370)	≥ 0.95 (in complex with Fe²⁺)
Iron (Fe) Content	≤ 0.001%
Heavy Metals (as Pb)	≤ 0.002%
Solubility (in Water)	Clear, yellow solution

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