Description

Acid Orange 24 is a synthetic azo dye belonging to the acid dye class, valued for its bright orange hue and good affinity for protein-based fibers. Its primary commercial value lies in providing vibrant, wash-fast coloration in textile applications, particularly for wool, silk, and nylon. This dye is essential for manufacturers in the textile, leather, and paper industries seeking reliable and consistent orange shades. It is also known by its CAS registry number 1320-07-6.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and nylon fibers to achieve bright orange colors.
• Leather Coloring: Used in the tanning industry for dyeing leather goods, providing good penetration and color fastness.
• Paper Staining: Employed for coloring paper products, including specialty papers and packaging materials.
• Ink Formulation: A colorant component in the manufacture of inks for various printing applications.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis.

Basic Information

Product Name	Acid Orange 24
CAS No.	1320-07-6
Molecular Formula	C16H11N2NaO4S
Molecular Weight	350.32 g/mol
Synonyms	Acid Orange GS; C.I. 20170; Acid Leather Orange GS; Acid Orange A; Wool Orange GS; 2-Naphthalenesulfonic acid, 7-hydroxy-8-[(2-methoxyphenyl)azo]-, monosodium salt; Sodium 7-hydroxy-8-[(2-methoxyphenyl)azo]naphthalene-1-sulfonate
EINECS	215-304-8

Quality Control

Our Acid Orange 24 is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot is tested against stringent in-house specifications for color strength, shade, solubility, and impurity profiles. A Certificate of Analysis (COA) detailing assay, heavy metal content, and other critical parameters is provided with every shipment to guarantee compliance with your application requirements.

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 strong oxidizing agents. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 95%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	Max. 5.0%
Water Solubility	Conforms
Heavy Metals (as Pb)	Max. 20 ppm
Ash Content	Max. 1.0%

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