Description

C.I. Acid Orange 120 is a synthetic acid dye belonging to the azo chemical class, valued for its bright and durable orange hue. It is a critical component for achieving consistent and wash-fast coloration on protein-based fibers like wool, silk, and nylon. This dye is essential for manufacturers in the textile, leather, and paper industries seeking reliable, high-performance colorants for their products.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and nylon fibers and fabrics to achieve vibrant orange shades with good fastness properties.
• Leather Coloring: Used in the dyeing of leather goods, providing rich and uniform color penetration.
• Paper Staining: Employed for coloring specialty papers, including decorative and packaging materials.
• Ink Formulation: A component in the manufacture of inks for various printing applications.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis.
• Polymer Coloring: Can be used for mass coloration of certain synthetic polymers and plastics.

Basic Information

Product Name	C.I. Acid Orange 120
CAS No.	12234-94-5
Molecular Formula	C32H24N8Na2O8S2
Molecular Weight	758.68 g/mol
Synonyms	Acid Orange 120; C.I. 26400; Acid Leather Orange PR; Acid Orange PR; Acid Orange GRL; Acid Fast Orange G; Dermina Orange PR; Supranol Fast Orange G; Telon Fast Orange G; Nylosan Orange E-RL; Lanasyn Orange S-RL
EINECS	Contact for details

Quality Control

Our production of C.I. Acid Orange 120 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance. Each lot is analyzed for key parameters including color strength, shade, solubility, and impurity profile to meet industry specifications. Certificates of Analysis (COA) documenting purity, physical properties, and fastness test 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). 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%
Moisture Content	Max. 5.0%
Water Solubility	Conforms
Shade	Conforms to standard pattern
Fastness Properties	Contact for details

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