Description

Acid Yellow 17 is a synthetic, water-soluble anionic dye belonging to the azo chemical class. This high-purity colorant is valued for its bright, vivid yellow hue and excellent tinctorial strength, providing reliable and consistent coloration. It is primarily used in the textile industry for dyeing protein fibers like wool, silk, and nylon, as well as in the production of inks, paper, and leather.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, nylon, and other protein-based fibers.
• Leather Coloring: Used for imparting a stable yellow color to various types of leather goods.
• Ink Manufacturing: A key pigment for producing yellow shades in writing, printing, and specialty inks.
• Paper Staining: Employed in the paper industry for coloring paper products and coatings.
• Biological Staining: Utilized in microscopy and histology as a staining agent in laboratory settings.
• Specialty Coatings: Suitable for use in certain coatings and colorants where a bright yellow is required.

Basic Information

Product Name	Acid Yellow 17
CAS No.	6359-98-4
Molecular Formula	C16H13N4NaO4S
Molecular Weight	380.35 g/mol
Synonyms	Acid Yellow A; C.I. 18965; Acid Leather Yellow D; Acid Yellow 2G; Acid Fast Yellow A; Wool Yellow A; Lissamine Yellow 2G; Kiton Yellow 2G; Acid Yellow GG; EINECS 228-782-3; Disodium 5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)hydrazono]-3-pyrazolecarboxylate
EINECS	228-782-3

Quality Control

Our Acid Yellow 17 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against rigorous in-house specifications for color strength, purity, and solubility. A comprehensive Certificate of Analysis (COA) detailing assay, shade, and physical properties is provided with every shipment to guarantee it meets 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 incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Clear solution at 1% w/v
Ash Content	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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