Description

Fuchsin Acid CAS NO 3244-88-0 is a synthetic organic dye belonging to the triarylmethane class, known for its vibrant magenta color and its role as a key intermediate in the synthesis of other dyes and biological stains. Its primary value lies in its ability to impart intense coloration and its specific reactivity, making it indispensable for precise manufacturing and analytical processes. This high-purity chemical is essential for industries including histology and microbiology for staining, textile manufacturing for dyeing, and specialty chemical synthesis.

Application

• Biological Staining: A critical component in various histological stains, including the Ziehl-Neelsen stain for acid-fast bacteria (e.g., Mycobacterium tuberculosis) and other diagnostic staining protocols.
• Textile Dyeing: Used as a primary dye or intermediate for coloring wool, silk, and other natural fibers, producing vivid magenta and pink shades.
• Chemical Synthesis: Serves as a key precursor in the manufacture of more complex triarylmethane dyes and other specialty organic compounds.
• Ink Manufacturing: Employed in the formulation of specialized inks for printing and marking applications requiring high color strength.
• Microscopy & Diagnostics: Utilized in laboratory settings for preparing slides and as a contrast agent in microscopic analysis.
• Research & Development: Used in academic and industrial R&D for photochemical studies, as a pH indicator, and in analytical chemistry methods.

Basic Information

Product Name	Fuchsin Acid
CAS No.	3244-88-0
Molecular Formula	C20H17N3O9S3
Molecular Weight	555.56 g/mol
Synonyms	Acid Fuchsin; Acid Magenta; Acid Rubin; Acid Violet 19; Aniline Rosaniline Trisulfonic Acid; Fuchsin S; Magenta S; Rosaniline Trisulfonic Acid; CI 42685; Aizen Acid Fuchsine; Basic Magenta Trisulfonate
EINECS	221-816-5

Quality Control

Our Fuchsin Acid is manufactured under strict quality management systems to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including identity confirmation by FT-IR, purity assessment by HPLC, and verification of key physical parameters. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Dark green to greenish-brown powder or crystals
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Solubility (in Water)	Passes test
pH (1% Solution)	2.0 - 4.0
Heavy Metals (as Pb)	≤ 20 ppm

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