Description

Solvent Orange 45 is a high-performance, oil-soluble azo dye widely used for its strong tinctorial strength and excellent solubility in non-polar media. This product is valued for its ability to impart a vibrant orange hue with superior light and heat stability in demanding industrial applications. It is primarily utilized by manufacturers in the plastics, synthetic fibers, waxes, and specialty inks industries seeking consistent and reliable coloration.

Application

• Primary coloration of polystyrene (PS), polyethylene (PE), and polypropylene (PP) plastics.
• Mass pigmentation of synthetic fibers including polyolefins.
• Coloring of petroleum-based waxes, lubricants, and greases.
• Manufacture of specialty printing inks, particularly for foil and plastic substrates.
• Staining of wood stains and coatings where oil solubility is required.
• Coloring agent for detergents and cleaning products.
• Marker or tracer dye in industrial fluids and fuels.

Basic Information

Product Name	Solvent Orange 45
CAS No.	13011-62-6
Molecular Formula	C₁₈H₁₄N₄O
Molecular Weight	302.33 g/mol
Synonyms	Solvent Orange 45; C.I. Solvent Orange 45; Oil Orange 45; 1-[[4-(Phenylazo)phenyl]azo]-2-naphthol; 1-[(E)-[4-[(E)-Phenyldiazenyl]phenyl]diazenyl]naphthalen-2-ol; Ceres Orange R; Aizen SOT Orange 1; Sudan Orange 220; Plast Orange 3R
EINECS	235-858-6

Quality Control

Our Solvent Orange 45 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is tested against comprehensive specifications for color strength, hue, solubility, and impurity profile. Certificates of Analysis (COA) documenting purity, physical properties, and performance tests are available for every shipment to support your quality assurance protocols.

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.

Specification

Item	Specification
Appearance	Orange to red-brown powder or granules
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Color Strength	100 ± 3% (vs. Standard)
Solubility (in Toluene)	Complete, clear solution
Moisture (KF)	≤ 0.5%
Ash Content	≤ 0.5%
Light Fastness	≥ 6 (ISO 105-B02)
Heat Stability	≥ 280°C

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