Description

Solvent Yellow 43 is a high-purity, oil-soluble azo dye widely recognized for its strong, stable yellow coloration. This product is essential for industries requiring consistent, non-migratory colorants that are compatible with non-polar systems. It is primarily utilized in the plastics, waxes, and specialty ink sectors where thermal stability and solubility in organic solvents are critical performance factors.

Application

• Coloration of hydrocarbon-based products such as lubricating oils and greases.
• Masterbatch production for coloring polyolefin plastics (e.g., polyethylene, polypropylene).
• Imparting color to petroleum waxes and candles.
• Manufacturing of specialty inks, including solvent-based and flexographic inks.
• Coloring agent for wood stains and polishes.
• Tinting of adhesives and sealants.

Basic Information

Product Name	Solvent Yellow 43
CAS No.	19125-99-6
Molecular Formula	C18H15N3O3
Molecular Weight	321.33 g/mol
Synonyms	Sudan Yellow 146; C.I. 56280; Oil Yellow 2G; Aizen SOT Yellow 1; Ceres Yellow GG; 1-(Phenylazo)-2-naphthol; 1-(Phenylazo)-2-naphthalenol; 2-Hydroxy-1-phenylazonaphthalene
EINECS	242-822-3

Quality Control

Our Solvent Yellow 43 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and reliability. The product is tested against rigorous internal specifications for color strength, solubility, and purity. A comprehensive Certificate of Analysis (COA) detailing assay, identification, and impurity profiles is provided with every shipment to support your quality assurance protocols.

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 heat sources and incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange powder or granules
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Color Strength	100 ± 5% (vs. Standard)
Solubility (in Toluene)	Complete, clear solution
Moisture (KF)	≤ 1.0%
Ash Content	≤ 0.5%

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