Description

Methyl Purple CAS NO 209187-17-7 is a synthetic organic dye belonging to the triarylmethane class, recognized for its distinct purple color. This compound is valued for its strong colorimetric properties, making it an essential reagent in analytical chemistry and industrial staining applications. It is primarily used by manufacturers and research laboratories in the chemical, biotechnology, and diagnostic sectors for precise colorimetric analysis and as a biological stain.

Application

• Analytical Chemistry Reagent: Used as a pH indicator and colorimetric reagent in titrations and spectrophotometric assays.
• Biological Staining: Employed in microscopy for staining cellular components and tissues in histological and cytological preparations.
• Industrial Dye Intermediate: Serves as a key intermediate in the synthesis of other dyes and pigments for various materials.
• Diagnostic Kits: Incorporated into test strips and kits for visual endpoint detection in medical and environmental testing.
• Research & Development: Utilized in laboratory research for developing new analytical methods and studying dye interactions.
• Educational Demonstrations: Applied in academic settings for teaching principles of acid-base chemistry and colorimetry.

Basic Information

Product Name	Methyl Purple
CAS No.	209187-17-7
Molecular Formula	C25H30N3O6S+ (as a common salt form)
Molecular Weight	Approx. 500.6 g/mol (Contact for exact salt form details)
Synonyms	Methyl Purple; Basic Violet 1 (C.I. 42535); Gentian Violet B; Methyl Violet 2B; Crystal Violet (related compound, often confused); Aniline Violet; Paris Violet; Hexamethyl-p-rosaniline chloride (common form); [4-[Bis[4-(dimethylamino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-dimethylammonium chloride
EINECS	Contact for details

Quality Control

Our Methyl Purple is produced under stringent quality management protocols. Each batch is tested to ensure consistent purity, color strength, and performance as a critical reagent. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as assay, absorbance, and impurity profiles. Our quality systems are designed to meet the rigorous demands of analytical and industrial applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent absorption of atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark green powder with metallic luster
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Value	Contact for details
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in water and ethanol

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