Description

Direct Yellow 132 is a high-performance, water-soluble disazo direct dye known for its excellent affinity to cellulosic fibers. This product is valued for its bright and vivid yellow hue, good lightfastness, and strong build-up properties, making it a reliable choice for consistent coloration. It is primarily used by manufacturers in the textile industry for dyeing cotton, viscose, and other regenerated fibers, as well as in the paper and leather industries.

Application

• Primary dyeing of cotton and viscose rayon fabrics and yarns.
• Coloration of paper products, including specialty papers and packaging materials.
• Dyeing of leather to achieve uniform and durable yellow shades.
• Used in the production of ink for various printing applications.
• Potential use as a colorant for non-food contact materials and other industrial applications.

Basic Information

Product Name	Direct Yellow 132
CAS No.	61968-26-1
Molecular Formula	C40H26N10Na4O16S4
Molecular Weight	1156.9 g/mol
Synonyms	Direct Fast Yellow 7G; Direct Yellow 7G; C.I. Direct Yellow 132; Direct Yellow 7GL; Pontamine Yellow 7G; Sirius Supra Yellow 7G; Solophenyl Yellow 7G; Aizen Primula Yellow 7GH
EINECS	Contact for details

Quality Control

Our Direct Yellow 132 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. The product undergoes comprehensive testing, including strength, shade, solubility, and fastness property evaluations. A Certificate of Analysis (COA) detailing specific lot results is provided with every shipment to guarantee it meets the agreed technical specifications.

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 brownish-yellow powder
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 95%
Strength (Color Value)	100 ± 3%
Moisture Content	Max. 5.0%
Water Insoluble Matter	Max. 0.5%
Shade	Conforms to standard sample
Solubility in Water	Conforms

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