Description

Acid Yellow 16 is a synthetic anionic dye belonging to the azo chemical class, recognized for its bright, clear yellow hue. It is valued for its strong affinity to protein fibers like wool and silk, as well as polyamide, providing good light and wash fastness properties. This dye is essential for manufacturers in the textile, leather, and paper industries seeking consistent and vibrant coloration. Its chemical identity is confirmed by CAS No. 1324-96-5.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and nylon fibers to achieve a bright yellow shade.
• Leather Finishing: Used in the coloration of leather goods, providing rich and uniform yellow tones.
• Paper Staining: Employed in the production of colored papers, specialty packaging, and decorative items.
• Ink Formulation: A colorant component in the manufacture of inks for various printing applications.
• Biological Staining: Potential use as a microscopic stain in histology and cytology laboratories.
• Specialty Coatings: Incorporated into coatings where a stable yellow pigment is required.

Basic Information

Product Name	Acid Yellow 16
CAS No.	1324-96-5
Molecular Formula	C16H13N4NaO4S
Molecular Weight	380.35 g/mol
Synonyms	Acid Yellow 16; C.I. 18965; Acid Leather Yellow 2G; Acid Fast Yellow E-2G; Lissamine Yellow 2G; Acid Yellow 2G; Wool Yellow 2G; 7-Hydroxy-8-[(E)-(4-sulfophenyl)diazenyl]-1,3-naphthalenedisulfonic Acid Trisodium Salt
EINECS	215-360-9

Quality Control

Our Acid Yellow 16 is manufactured under a stringent quality management system. Every batch is tested to ensure it meets precise specifications for color strength, shade, solubility, and impurity profiles. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing results for key parameters to guarantee batch-to-batch consistency and performance reliability for your applications.

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	Yellow to orange-yellow powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to standard
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
Assay (HPLC)	≥ 95.0%
Heavy Metals (as Pb)	≤ 20 ppm

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