Description

Sudan Orange G is a synthetic, oil-soluble azo dye belonging to the Sudan dye family, identified by CAS NO 2051-85-6. This compound is valued for its strong, stable orange coloration and its solubility in non-polar organic solvents, making it a critical colorant for industrial applications. It is primarily utilized by manufacturers in the plastics, wax, and hydrocarbon industries, as well as in research laboratories for staining and identification purposes.

Application

• Plastics and Polymer Coloring: Used as a color masterbatch or direct dye for coloring polystyrene, polycarbonate, and other thermoplastic materials.
• Wax and Candle Manufacturing: Imparts a vibrant, uniform orange hue to paraffin, beeswax, and other wax-based products.
• Fuel and Oil Marker: Serves as a dye for hydrocarbon-based fuels, lubricants, and industrial oils for identification and branding.
• Laboratory Staining: Employed in biological and histological research for staining lipids and other non-polar substances in microscopy.
• Ink Formulation: A key pigment for specialty printing inks, particularly those requiring oil solubility and lightfastness.
• Cosmetics and Personal Care: Used in the coloration of certain cosmetic products where oil-soluble dyes are required, adhering to relevant regional safety regulations.

Basic Information

Product Name	Sudan Orange G
CAS No.	2051-85-6
Molecular Formula	C₁₆H₁₂N₂O
Molecular Weight	248.28 g/mol
Synonyms	Sudan Orange; Solvent Orange 54; C.I. 11920; 1-[(2-Methoxyphenyl)azo]-2-naphthol; Sudan Orange G; Ceres Orange G; Oil Orange G; Fat Orange G; Waxoline Orange G
EINECS	218-159-1

Quality Control

Our Sudan Orange G is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot is tested against rigorous in-house specifications, which typically include identity confirmation, purity assay, and tests for insolubles and heavy metals. A Certificate of Analysis (COA) detailing these results is provided with every shipment to guarantee product integrity for your industrial processes.

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 and incompatible materials.

Specification

Item	Specification
Appearance	Orange to reddish-orange powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Solubility (in Toluene)	Complete, clear solution
Heavy Metals (as Pb)	≤ 20 ppm

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