Description

Solvent Red 151 is a high-performance, oil-soluble dye belonging to the anthraquinone class, known for its excellent color strength and stability. It is a critical component for achieving vibrant, durable red coloration in non-aqueous systems where superior lightfastness and heat resistance are required. This product is essential for manufacturers in the plastics, coatings, and specialty ink industries seeking reliable and consistent pigmentation for their formulations.

Application

• Primary colorant for the mass coloration of thermoplastics such as polystyrene (PS), polycarbonate (PC), and ABS.
• Solvent-based industrial coatings and automotive finishes requiring high transparency and weatherability.
• Manufacturing of specialty printing inks, including flexographic and gravure inks for packaging.
• Coloration of synthetic fibers and masterbatches during the polymer melt spinning process.
• Tinting agent for fuels, lubricants, and waxes for identification and branding purposes.
• Used in the production of colored polishes and wood stains.

Basic Information

Product Name	Solvent Red 151
CAS No.	114013-41-1
Molecular Formula	C24H20N2O2
Molecular Weight	368.43 g/mol
Synonyms	1-[[4-(Phenylazo)phenyl]azo]-2-naphthalenol; C.I. Solvent Red 151; 1-[(E)-[4-[(E)-Phenyldiazenyl]phenyl]diazenyl]naphthalen-2-ol; Oil Red 151; Ceres Red 151; Aizen SOT Red-1; Keyplast Red G; Red G Solvent; Sudan Red 151; Anthraquinone Red Dye
EINECS	Contact for details

Quality Control

Our Solvent Red 151 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. The product is tested against rigorous in-house specifications for critical parameters including color strength, hue, solubility, and impurity profile. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance tests is provided with each 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. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain optimal color stability.

Specification

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

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