Description

Acid Orange 154 is a synthetic anionic dye belonging to the azo dye class, valued for its vibrant orange hue and strong affinity for protein-based fibers like wool, silk, and nylon. Its primary commercial value lies in providing excellent light and wash fastness properties, ensuring color durability in demanding applications. This dye is essential for manufacturers in the textile, leather, and paper industries seeking reliable and consistent coloration for their products.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and nylon fibers to achieve bright, fast orange shades.
• Leather Finishing: Used in the coloration of leather goods, providing rich and uniform color penetration.
• Paper Staining: Employed for tinting specialty papers, including decorative 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 154
CAS No.	133556-24-8
Molecular Formula	C32H24N4Na2O8S2
Molecular Weight	694.66 g/mol
Synonyms	Acid Orange AGT; C.I. Acid Orange 154; Sodium 4,4'-(1,4-phenylenebis(azo))bis(5-hydroxy-2,7-naphthalenedisulfonate); Acid Leather Orange AGT; Acid Fast Orange A2R; Wool Orange AGT; Nylosan Orange F-3RL
EINECS	Contact for details

Quality Control

Our Acid Orange 154 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against rigorous in-house specifications for critical parameters including color strength, shade, solubility, and impurity profile. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and conformance is provided with every shipment.

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.

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
pH (1% Solution)	6.0 - 8.0
Ash Content	Max. 1.0%

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