Description

Acid Yellow 184 is a synthetic organic dye belonging to the acid dye class, characterized by its bright yellow hue and good solubility in aqueous systems. This high-performance colorant is valued for its strong affinity to polyamide and protein-based fibers, delivering excellent wash and light fastness properties. It is primarily utilized in the textile industry for dyeing nylon, wool, and silk, as well as in the coloration of leather, paper, and inks. Acid Yellow 184 CAS NO 61968-07-8 offers a reliable and consistent coloring solution for manufacturers requiring vibrant and durable yellow shades.

Application

• Textile Dyeing: Primary application for dyeing nylon (polyamide), wool, and silk fabrics and yarns.
• Leather Coloring: Used for dyeing leather goods, providing uniform and fast coloration.
• Paper Staining: Employed in the production of colored papers and specialty paper products.
• Ink Formulation: A key component in the manufacture of inks for various printing applications.
• Biomolecule Staining: Potential use in laboratory settings for staining proteins or other biomolecules in gel electrophoresis.

Basic Information

Product Name	Acid Yellow 184
CAS No.	61968-07-8
Molecular Formula	C21H18N4Na2O8S2
Molecular Weight	580.50 g/mol
Synonyms	Acid Fast Yellow E-3G; C.I. Acid Yellow 184; Acid Yellow E-3G; Acid Yellow 3G; Yellow 184; 2,7-Naphthalenedisulfonic acid, 5-[(4-aminophenyl)azo]-4-hydroxy-3-[(2-methoxyphenyl)azo]-, disodium salt; Disodium 5-[(4-aminophenyl)azo]-4-hydroxy-3-[(2-methoxyphenyl)azo]naphthalene-2,7-disulphonate
EINECS	Contact for details

Quality Control

Our Acid Yellow 184 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance reliability. Each lot undergoes comprehensive analysis, including strength (assay), shade verification, and tests for insoluble matter and heavy metals. A Certificate of Analysis (COA) detailing all relevant specifications is provided with every shipment to guarantee compliance with your technical 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). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture which may affect performance.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Water Insoluble Matter	Max. 0.5%
Heavy Metals (as Pb)	Max. 50 ppm
Shade & Strength	Within agreed commercial tolerance vs. standard

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