Description

Acid Blue 1 is a synthetic, water-soluble acid dye belonging to the triarylmethane class. This high-purity colorant is valued for its brilliant blue hue and strong tinctorial strength, making it a critical component for achieving consistent and vibrant coloration. It is primarily utilized in industries requiring precise and stable dyeing of protein-based fibers and other substrates. Our global supply ensures reliable access to this essential dye for manufacturers worldwide.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and nylon fibers to achieve bright blue shades.
• Leather Processing: Used for coloring leather goods, providing good penetration and color fastness.
• Paper Staining: Employed in the production of colored papers and specialty paper products.
• Ink Formulation: A key pigment in the manufacture of writing inks, stamp pad inks, and other liquid colorants.
• Biological Staining: Used in microscopy as a histological stain for biological tissues in laboratory settings.
• Food Contact Materials: Potential use in coloring food packaging materials where regulatory compliance is met (subject to specific grade and regional approvals).

Basic Information

Product Name	Acid Blue 1
CAS No.	20262-76-4
Molecular Formula	C27H31N2O6S2•Na
Molecular Weight	566.66 g/mol
Synonyms	Brilliant Blue FCF (Food Blue 2); C.I. Acid Blue 1; C.I. 42045; Erioglaucine A; Patent Blue V; Alphazurine FG; Acid Brilliant Blue FCF; Aniline Blue WS; L-Blau 3
EINECS	243-685-8

Quality Control

Our Acid Blue 1 is manufactured under a strict quality management system. Each batch is analyzed to ensure it meets precise specifications for color strength, purity, and solubility. We provide comprehensive Certificates of Analysis (COA) with key parameters including assay, impurity profile, and heavy metal content, supporting compliance with industry and regulatory standards for its intended applications.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark blue powder or granules
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 85%
Color Strength	100 ± 3% (vs. Standard)
Moisture (Karl Fischer)	≤ 5.0%
Water Solubility	Clear, complete solution
Heavy Metals (as Pb)	≤ 20 ppm
Ash Content	≤ 1.0%

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