Description

Vat Orange 7 is a synthetic organic pigment belonging to the vat dye class, known for its excellent fastness properties. This high-performance colorant is valued for its superior lightfastness, washfastness, and chemical resistance, making it a durable choice for demanding applications. It is primarily utilized in industries requiring long-lasting and vibrant coloration, such as textile printing and dyeing, as well as in the coloration of plastics and specialty coatings.

Application

• Textile Dyeing and Printing: Used for coloring cotton, wool, and other natural fibers, providing excellent fastness to light and washing.
• Plastic Coloring: Imparts stable and vivid orange hues to various polymers, including PVC and polyolefins, for consumer goods and industrial components.
• Industrial Coatings: Employed in the formulation of high-performance paints and coatings that require durability and UV resistance.
• Ink Manufacturing: Suitable for producing specialty inks where color stability and chemical resistance are critical.
• Paper Coloring: Used in the tinting of specialty papers and decorative laminates.

Basic Information

Product Name	Vat Orange 7
CAS No.	4424-06-0
Molecular Formula	C24H12N2O2
Molecular Weight	360.36 g/mol
Synonyms	C.I. Vat Orange 7; C.I. 71105; Vat Orange R; Pyranthrone Orange; Dibenzopyrenequinone; 8,16-Pyranthrenedione; C.I. Pigment Orange 40 (when used as a pigment); Vat Orange RR
EINECS	224-596-6

Quality Control

Our Vat Orange 7 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high purity. Quality is verified through a series of analytical tests including identification, assay, and impurity profiling. Certificates of Analysis (COA) detailing all specifications and test results are available upon request to support your quality assurance protocols.

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.

Specification

Item	Specification
Appearance	Orange to reddish-orange powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Shade	Matches reference standard
Lightfastness	≥ 7 (ISO 105-B02)
Washfastness	≥ 4-5 (ISO 105-C06)
Moisture Content	≤ 2.0%
Ash Content	≤ 1.0%

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