Description

Acid Orange 116 is a synthetic anionic dye belonging to the azo dye class, valued for its vibrant orange hue and good fastness properties. This dye is engineered for demanding applications where color consistency, wash fastness, and lightfastness are critical performance factors. It is primarily needed by manufacturers in the textile, leather, and paper industries for dyeing and printing natural and synthetic fibers.

Application

• Primary dyeing of wool, silk, and nylon fibers.
• Printing applications on textile fabrics to achieve sharp, orange patterns.
• Leather finishing for coloring hides and skins.
• Paper coloration for specialty papers and packaging.
• As a colorant for non-textile substrates requiring anionic dyes.
• Used in research and development laboratories for dye formulation studies.

Basic Information

Product Name	Acid Orange 116
CAS No.	12220-10-9
Molecular Formula	C32H24N4Na2O8S2
Molecular Weight	694.66 g/mol
Synonyms	Acid Orange AG; C.I. Acid Orange 116; Acid Fast Orange AG; Acid Leather Orange AG; Sodium 4-[(2,4-dihydroxy-5-[(4-sulfophenyl)azo]phenyl)azo]-3-hydroxynaphthalene-2,7-disulfonate; 2,7-Naphthalenedisulfonic acid, 4-[(2,4-dihydroxy-5-[(4-sulfophenyl)azo]phenyl)azo]-3-hydroxy-, disodium salt; Orange AG (Acid dye)
EINECS	Contact for details

Quality Control

Our Acid Orange 116 is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise color strength, purity, and solubility specifications. A Certificate of Analysis (COA) detailing assay, shade, and impurity profiles is provided with each shipment to guarantee batch-to-batch consistency for your production processes.

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
Ash Content	Max. 1.0%

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