Description

Vat Green 33 is a high-performance, synthetic organic pigment belonging to the vat dye class, known for its excellent color fastness and chemical stability. This compound is valued for its ability to provide durable and vibrant green coloration that resists fading from light, washing, and chemical exposure. It is a critical material for industries requiring long-lasting, high-quality colorants, particularly in textile dyeing and specialty coatings.

Application

• Textile Dyeing and Printing: Primary application for dyeing cotton, wool, and other natural fibers, prized for its superior wash and light fastness.
• Industrial Coatings and Paints: Used in high-durability coatings where color stability against weathering and chemicals is essential.
• Plastics and Masterbatch Coloring: Imparts stable green color to polymers and engineering plastics during high-temperature processing.
• Leather Finishing: Employed for coloring leather goods, offering rich color and good resistance to rubbing.
• Paper Coloration: Used in specialty paper products requiring high color purity and stability.
• Artist and Specialty Inks: A component in high-quality inks for applications demanding archival quality and color permanence.

Basic Information

Product Name	Vat Green 33
CAS No.	57456-30-1
Molecular Formula	C36H16Cl2N2O6
Molecular Weight	639.43 g/mol
Synonyms	C.I. Vat Green 33; C.I. 69525; Vat Green GG; Cibanone Green GG; Caledon Green GG; Indanthren Green GG; 16,17-Dimethoxydinaphtho[2,3-a:2',3'-h]phenazine-5,10,15,24-tetrone; 5,10,15,24-Tetrahydro-5,10,15,24-tetraoxodinaphtho[2,3-a:2',3'-h]phenazine-16,17-dimethoxy
EINECS	Contact for details

Quality Control

Our Vat Green 33 is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical testing, including spectrophotometry, chromatography, and physical property assessments. A Certificate of Analysis (COA) detailing purity, strength, and impurity profiles is provided with every shipment to guarantee compliance with your 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 heat sources and incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Dark Green Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Hue	Conforms to Standard
Purity (HPLC)	≥ 96.0%
Moisture Content	≤ 1.0%
Ash Content	≤ 0.5%
Particle Size (95% Pass)	≤ 5.0 µm
Light Fastness	≥ 7-8 (ISO 105-B02)
Wash Fastness	≥ 4-5 (ISO 105-C06)

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