Description

2-(1-Oxooctadecyl)-1H-thioxantheno[2,1,9-def]isoquinoline-1,3(2H)-dione is a high-performance organic pigment and dye intermediate. This compound matters for its role in producing durable, vivid colorants with excellent stability for demanding industrial applications. It is primarily needed by manufacturers in the pigments, dyes, plastics, and specialty coatings industries seeking to enhance product performance and color fidelity.

Application

• High-Performance Pigments: As a key intermediate for the synthesis of advanced organic pigments, particularly in the thioxanthenoisoquinoline class.
• Plastics and Polymers Coloring: Used in the coloration of engineering plastics, synthetic fibers, and masterbatches requiring high thermal and light stability.
• Industrial Coatings and Inks: Imparts durable coloration to automotive paints, industrial coatings, and printing inks that must withstand harsh environmental conditions.
• Specialty Dyes: Serves as a precursor for dyes used in applications demanding specific spectral properties and chemical resistance.
• Research and Development: Utilized in chemical R&D for developing new colorant molecules and studying structure-property relationships.

Basic Information

Product Name	2-(1-Oxooctadecyl)-1H-thioxantheno[2,1,9-def]isoquinoline-1,3(2H)-dione
CAS No.	72269-57-9
Molecular Formula	C₃₃H₃₉NO₃S
Molecular Weight	529.73 g/mol
Synonyms	2-Stearoylthioxanthenoisoquinolinedione; 2-Octadecanoyl-1H-thioxantheno[2,1,9-def]isoquinoline-1,3(2H)-dione; Thioxanthenoisoquinolinedione derivative; Pigment Intermediate 72269-57-9; Stearic acid thioxanthenoisoquinolinedione ester; C.I. Pigment (Contact for specific number); 2-(1-Oxooctadecyl)thioxanthenoisoquinolinedione
EINECS	Contact for details

Quality Control

Our production of 2-(1-Oxooctadecyl)-1H-thioxantheno[2,1,9-def]isoquinoline-1,3(2H)-dione adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet exacting customer specifications. A Certificate of Analysis (COA) detailing all quality parameters is provided with every shipment.

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. For long-term storage, consider an inert atmosphere to preserve product integrity.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.2%
Heavy Metals (as Pb)	≤ 20 ppm

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