Description

Solvent Blue 45 is a high-performance anthraquinone-based solvent dye known for its excellent solubility and vibrant blue color. This product is engineered to deliver consistent, high-strength coloration and superior stability in a wide range of non-polar and low-polarity organic media. It is an essential component for manufacturers in the plastics, ink, and coatings industries requiring reliable and durable blue shades. The compound is identified by CAS No. 37229-23-5.

Application

• Primary coloration of polystyrene (PS), polycarbonate (PC), and polymethyl methacrylate (PMMA) plastics.
• Manufacturing of printing inks, including specialty inks for security printing and packaging.
• Solvent-based industrial coatings and wood stains requiring lightfastness.
• Coloring of fuels, lubricants, and waxes for identification and branding purposes.
• Production of ballpoint pen inks and other writing instruments.
• As a colorant in research and analytical chemistry applications.

Basic Information

Product Name	Solvent Blue 45
CAS No.	37229-23-5
Molecular Formula	C20H18N2O2
Molecular Weight	318.37 g/mol
Synonyms	1,4-Bis(butylamino)anthraquinone; C.I. Solvent Blue 45; 1,4-Bis(n-butylamino)anthraquinone; Oil Blue B; Waxoline Blue AP-FW; Ceres Blue GN; Arlamol Blue B; Anthraquinone Blue AP
EINECS	253-424-6

Quality Control

Our Solvent Blue 45 is produced under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against rigorous internal specifications for color strength, purity, and solubility. 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, 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 product integrity.

Specification

Item	Specification
Appearance	Dark blue powder or granules
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Color Strength	100 ± 3% (vs. Standard)
Solubility (in Toluene)	Clear, complete solution
Moisture Content (KF)	≤ 0.5%
Ash Content	≤ 0.2%

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