Description

C.I.Direct Yellow 47 is a high-performance, water-soluble direct dye belonging to the azo chemical class. This product is valued for its strong affinity to cellulosic fibers, providing excellent wash and light fastness properties for vibrant yellow coloration. It is primarily utilized in the textile industry for dyeing cotton, viscose, and other natural fibers, as well as in the paper and leather industries. Our supply ensures consistent quality and reliable performance for industrial-scale operations.

Application

• Textile Dyeing: Primary application for dyeing cotton, rayon, viscose, and other cellulosic fabrics to achieve a bright yellow shade.
• Paper Coloring: Used in the production of colored papers, tissues, and paperboard where a stable yellow hue is required.
• Leather Finishing: Employed in the dyeing of leather goods, including footwear, apparel, and upholstery.
• Ink Formulation: A colorant component in the manufacture of certain types of inks for specialty applications.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis.

Basic Information

Product Name	C.I. Direct Yellow 47
CAS No.	12239-54-2
Molecular Formula	C29H19N5Na2O8S2
Molecular Weight	695.66 g/mol
Synonyms	Direct Yellow 47; C.I. 29050; Benzoic acid, 5-[[4'-[(2,4-diaminophenyl)azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-, disodium salt; Direct Fast Yellow GC; Sirius Yellow GC; Solophenyl Yellow AGL; Pontamine Fast Yellow GCL; Chlorazol Yellow GK
EINECS	235-462-6

Quality Control

Our C.I. Direct Yellow 47 is manufactured under a strict quality management system. Every batch is tested to ensure it meets precise color strength, shade, and solubility specifications critical for consistent dyeing results. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with each shipment to guarantee traceability and 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). Keep away from strong oxidizing agents. The product is light-sensitive; prolonged exposure to direct light should be avoided to maintain color stability.

Specification

Item	Specification
Appearance	Yellow to Brownish-Yellow Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to Standard
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Solubility in Water	Conforms
Fastness Properties (Typical)	Light: 5-6; Wash: 4-5

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