Description

Vat Red 38 is a high-performance vat dye belonging to the anthraquinone chemical class, known for its excellent color fastness and stability. This compound is valued for its ability to produce vibrant, durable red shades on cellulosic fibers, making it a critical component for demanding textile applications. It is primarily used by manufacturers in the textile dyeing and printing industries who require superior wash, light, and perspiration fastness for their products.

Application

• Primary application in the dyeing of cotton, viscose, and other cellulosic fibers.
• Used in the printing of textiles to achieve sharp, fast red prints.
• Employed for dyeing yarn and thread intended for high-quality fabrics and industrial sewing threads.
• Suitable for applications requiring exceptional lightfastness, such as automotive fabrics, awnings, and outdoor textiles.
• Can be used in the coloration of paper and leather where color durability is essential.
• Applied in batchwise dyeing processes as well as continuous dyeing ranges.

Basic Information

Product Name	Vat Red 38
CAS No.	6219-99-4
Molecular Formula	C₂₆H₁₂Cl₂N₂O₄
Molecular Weight	487.29 g/mol
Synonyms	C.I. Vat Red 38; Vat Red 38; C.I. 73320; 8,16-Pyranthrenedione, 5,13-dichloro-3,10-dihydro-3,10-dioxo-; Cibanone Red 3B; Indanthren Red FBB; Caledon Red X3B; Mikethrene Red FBB
EINECS	228-304-4

Quality Control

Our Vat Red 38 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against key parameters including shade, strength, and fastness properties to meet precise industrial specifications. A comprehensive Certificate of Analysis (COA) detailing purity, physical form, and application performance is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Reddish-brown powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to standard
Moisture Content	≤ 5.0%
Particle Size	≥ 95% passes 80 mesh
Fastness to Washing	≥ 4-5 (ISO 105-C03)
Fastness to Light	≥ 6-7 (ISO 105-B02)

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