Description

Vat Orange 9 is a high-performance vat dye belonging to the anthraquinone chemical class, known for its excellent colorfastness and stability. This compound is valued for its ability to produce vibrant, durable orange shades that resist fading from washing, light, and perspiration. It is primarily utilized by manufacturers in the textile industry for dyeing and printing natural fibers like cotton, as well as in niche applications requiring high chemical resistance. The product is supplied under the identifier CAS No. 128-70-1.

Application

• Textile Dyeing: Primary application for dyeing cotton, linen, and other cellulosic fibers to achieve fast orange colors.
• Textile Printing: Used in printing pastes for creating patterned fabrics with excellent wash and light fastness.
• Yarn Dyeing: Employed for dyeing yarns intended for high-quality denim, workwear, and home textiles.
• Leather Coloring: Applied in the dyeing of leather goods where color durability is essential.
• Paper Staining: Used for specialty paper products requiring colorfast pigmentation.
• Research & Development: Serves as a chemical intermediate or reference standard in laboratory settings.

Basic Information

Product Name	Vat Orange 9
CAS No.	128-70-1
Molecular Formula	C28H12N2O4
Molecular Weight	440.41 g/mol
Synonyms	Vat Orange R; C.I. 59700; C.I. Vat Orange 9; Dibenzanthrone Orange; 16,17-Dimethoxydibenzanthrone; Indanthren Orange R; Caledon Orange R; Cibanone Orange R; Solanthrene Orange R; Mikethrene Orange R
EINECS	204-904-7

Quality Control

Our Vat Orange 9 is manufactured under a stringent quality management system. Every batch is tested to ensure it meets precise specifications for color strength, shade, and chemical purity, consistent with industry standards for vat dyes. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with each shipment to guarantee product integrity and traceability.

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 container must be kept tightly closed to prevent contamination and moisture absorption.

Specification

Item	Specification
Appearance	Orange to Reddish-Orange Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to Standard
Purity (HPLC)	≥ 96.0%
Moisture Content	≤ 1.0%
Ash Content	≤ 0.5%
Particle Size	≥ 95% passes 80 mesh

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