Description

Acid Orange 45 is a synthetic anionic dye belonging to the azo dye class, valued for its bright and durable orange color. It is a critical component for achieving consistent and high-quality coloration in various industrial processes. This product is primarily utilized by manufacturers in the textile, leather, and paper industries seeking reliable and efficient dyeing agents.

Application

• Textile Dyeing: Primary application for dyeing protein fibers like wool, silk, and nylon, offering good wash and light fastness.
• Leather Finishing: Used for coloring leather goods, providing vibrant and uniform shades.
• Paper Staining: Employed in the production of colored papers and specialty paper products.
• Ink Formulation: A colorant component in the manufacture of certain inks and toners.
• Biological Staining: Potential use as a histological stain in laboratory settings (subject to specific grade purity).
• Industrial Markers: Suitable for use in non-food industrial marking and tracing applications.

Basic Information

Product Name	Acid Orange 45
CAS No.	2429-80-3
Molecular Formula	C16H11N4NaO4S
Molecular Weight	378.34 g/mol
Synonyms	Acid Orange A; C.I. Acid Orange 45; Acid Leather Orange AG; Acid Orange AG; 2-Naphthalenesulfonic acid, 7-hydroxy-8-[(2-methoxyphenyl)azo]-, monosodium salt; Sodium 7-hydroxy-8-[(2-methoxyphenyl)azo]naphthalene-2-sulfonate; Orange AG; Acid Fast Orange A
EINECS	219-371-8

Quality Control

Our Acid Orange 45 is manufactured under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including spectrophotometric purity analysis and impurity profiling, to ensure it meets consistent performance standards for industrial dyeing. Certificates of Analysis (COA) detailing specific batch results are available upon request.

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 sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to standard
Assay (Color Strength)	≥ 95% (by spectrophotometry)
Moisture Content	≤ 5.0% (Karl Fischer)
Water Insoluble Matter	≤ 1.0%
Shade	Conforms to agreed reference
Fastness Properties	As per industrial requirements

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