Description

Solvent Red 13 is a high-purity, synthetic organic colorant belonging to the solvent dye class, identified by CAS No. 6410-21-5. This product is valued for its excellent solubility in non-polar to moderately polar organic media, providing strong, vivid coloration. It is primarily utilized by industrial manufacturers requiring consistent and reliable pigmentation for their formulations. Key sectors include plastics, inks, coatings, and specialty chemical applications where color stability and performance are critical.

Application

• Plastics and Polymers: Used for coloring a wide range of thermoplastic and thermoset resins, including polystyrene, acrylics, and polycarbonates.
• Printing Inks: Serves as a key colorant in solvent-based inks for flexographic, gravure, and specialty printing applications.
• Industrial Coatings and Paints: Imparts durable color to wood stains, metal coatings, and automotive refinish products.
• Waxes and Polishes: Employed to color shoe polishes, floor waxes, and other similar consumer and industrial products.
• Lacquers and Varnishes: Provides transparent or translucent coloration for decorative and protective wood finishes.
• Fuel and Oil Markers: Can be used as a dye for marking or identifying specific grades of fuels and lubricants.
• Specialty Chemical Formulations: Acts as a colorant in adhesives, sealants, and other chemical mixtures.

Basic Information

Product Name	Solvent Red 13
CAS No.	6410-21-5
Molecular Formula	C24H20N4O
Molecular Weight	380.44 g/mol
Synonyms	1-[[4-(Phenylazo)phenyl]azo]-2-naphthol; C.I. Solvent Red 13; C.I. 26050; Oil Red; Sudan Red 13; Ceres Red 13; Aizen Oil Red; 1-[(E)-[4-[(E)-Phenyldiazenyl]phenyl]diazenyl]naphthalen-2-ol
EINECS	229-094-4

Quality Control

Our Solvent Red 13 is manufactured under a strict quality management system to ensure batch-to-batch consistency and high performance. Each lot is tested against rigorous internal specifications for parameters such as color strength, purity, and solubility. A Certificate of Analysis (COA) detailing these results 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, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. The product is light-sensitive and should be stored away from direct light exposure to maintain stability.

Specification

Item	Specification
Appearance	Red to dark red 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.