Description

Methylxylenol Blue is a high-purity metallochromic indicator and complexometric reagent essential for precise analytical chemistry. Its primary value lies in its selective colorimetric response to specific metal ions, enabling accurate endpoint detection in complexometric titrations. This compound is a critical tool for quality control laboratories, research institutions, and industrial facilities involved in water analysis, pharmaceutical testing, and metallurgical processes. We supply Methylxylenol Blue CAS NO 29412-85-9 to the global market, ensuring consistent performance and reliable results for demanding applications.

Application

• Complexometric Titrations: Primarily used as a visual indicator for the titration of metal ions like aluminum, bismuth, and thorium with EDTA.
• Water Hardness Analysis: Employed in the determination of calcium and magnesium concentrations in water treatment and environmental monitoring.
• Pharmaceutical Quality Control: Utilized in assays for metal ion impurities in active pharmaceutical ingredients (APIs) and excipients.
• Metallurgical & Industrial Analysis: Applied in the analysis of ores, alloys, and industrial process streams for specific metal content.
• Research & Development: Serves as a key reagent in chemical research, method development, and educational laboratory settings.
• Dye & Staining Applications: Can be used in specific histological or microscopic staining techniques due to its chromogenic properties.

Basic Information

Product Name	Methylxylenol Blue
CAS No.	29412-85-9
Molecular Formula	C37H32N2O13S3
Molecular Weight	808.87 g/mol
Synonyms	3,3'-Bis[N,N-bis(carboxymethyl)aminomethyl]-o-cresolsulfonphthalein; Methylthymol Blue (related compound); MXB; Methyl Xylenol Blue; o-Cresolsulfonphthalein-3,3'-bis(methyliminodiacetic acid); 3,3'-Bis[bis(carboxymethyl)aminomethyl]-o-cresolsulfonphthalein; Metallochromic indicator for EDTA titrations
EINECS	Contact for details

Quality Control

Our Methylxylenol Blue is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including identity confirmation, purity assay, and impurity profiling. Certificates of Analysis (COA) detailing all test results are provided with every shipment. We adhere to relevant industry standards for laboratory reagents to guarantee suitability for sensitive analytical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture. Store away from incompatible materials.

Specification

Item	Specification
Appearance	Dark green to brownish-black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0 %
Solubility	Soluble in alkaline aqueous solutions
Heavy Metals	≤ 20 ppm

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