Description

Light Green Sf Yellowish is a synthetic organic dye belonging to the triarylmethane class, identified by CAS NO 5141-20-8. This compound is valued for its vibrant, stable greenish-yellow hue, making it a critical component for imparting consistent and durable coloration. It is primarily utilized by manufacturers in the textile, paper, and specialty ink industries where precise color matching and fastness properties are required. Our supply ensures high purity and batch-to-batch consistency for reliable integration into your production processes.

Application

• Textile Dyeing: Used for dyeing natural and synthetic fibers, including wool, silk, and nylon, to achieve light green to yellowish shades.
• Paper Coloring: Employed in the production of colored papers, tissues, and decorative paper products.
• Ink Formulation: A key pigment in the manufacture of printing inks, stamp pads, and specialty inks for various substrates.
• Leather Finishing: Applied in the dyeing and finishing of leather goods to provide consistent coloration.
• Biological Staining: May be used in histological and microbiological staining procedures as a contrast agent.
• Industrial Coatings: Incorporated into coatings and paints where specific color properties are needed.

Basic Information

Product Name	Light Green Sf Yellowish
CAS No.	5141-20-8
Molecular Formula	C37H34N2O4S2•Na
Molecular Weight	669.80 g/mol (Sodium salt)
Synonyms	Acid Green 5; C.I. 42095; Food Green 2; Wool Green S; Light Green SF Yellowish; Lissamine Green B; Acid Leather Green SG; Green S; E142
EINECS	225-909-4

Quality Control

Every batch of Light Green Sf Yellowish is manufactured and tested under a strict quality management system. We ensure compliance with relevant industry specifications for dye content, purity, and heavy metal limits. A comprehensive Certificate of Analysis (COA) detailing parameters such as assay, absorbance, and impurity profile is provided with each shipment to guarantee product consistency and performance.

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. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain color stability.

Specification

Item	Specification
Appearance	Green powder or crystals
Identification (IR)	Conforms to standard
Assay (Dye Content)	Min. 85%
Loss on Drying	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Absorbance (λ max)	Conforms to standard range

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