Description

Butyl 2-[[3-[[[2-(Diethylamino)-5-[(Octadecylamino)Sulphonyl]Phenyl]Amino]Carbonyl]-4-Hydroxy-1-Naphthyl]Azo]Benzoate is a specialized, high-molecular-weight azo dye intermediate with a complex, functionalized structure designed for demanding applications. This compound matters for its ability to impart specific colorant properties and act as a key building block in the synthesis of advanced pigments and dyes. It is primarily needed by manufacturers in the specialty chemicals, high-performance pigments, and advanced material coatings industries seeking tailored chromophoric performance.

Application

• Primary Intermediate for High-Performance Pigments: Serves as a critical precursor in the synthesis of complex organic pigments for automotive, industrial, and decorative coatings.
• Specialty Dye Manufacturing: Used in the production of specialized dyes for plastics, synthetic fibers, and inks requiring enhanced lightfastness and thermal stability.
• Functional Material Development: Acts as a chromophore in the research and development of advanced materials, including optical filters and non-linear optical (NLO) materials.
• Analytical Chemistry Reagent: May be employed as a staining agent or a colorimetric indicator in specific analytical and biochemical assays.
• Research & Development: Utilized in academic and industrial R&D for studying azo dye chemistry, molecular interactions, and new synthetic pathways.

Basic Information

Item	Detail
Product Name	Butyl 2-[[3-[[[2-(Diethylamino)-5-[(Octadecylamino)Sulphonyl]Phenyl]Amino]Carbonyl]-4-Hydroxy-1-Naphthyl]Azo]Benzoate
CAS No.	42381-20-4
Molecular Formula	C50H69N5O6S
Molecular Weight	868.18 g/mol
Synonyms	Benzoic acid, 2-[[3-[[[2-(diethylamino)-5-[(octadecylamino)sulfonyl]phenyl]amino]carbonyl]-4-hydroxy-1-naphthalenyl]azo]-, butyl ester; Butyl 2-[(3-{[2-(diethylamino)-5-(octadecylsulfamoyl)phenyl]carbamoyl}-4-hydroxynaphthalen-1-yl)diazenyl]benzoate; C.I. Solvent Yellow; Azo dye intermediate 42381-20-4; Long-chain alkyl azo dye; Naphthol AS-based derivative
EINECS	Contact for details

Quality Control

Our production of Butyl 2-[[3-[[[2-(Diethylamino)-5-[(Octadecylamino)Sulphonyl]Phenyl]Amino]Carbonyl]-4-Hydroxy-1-Naphthyl]Azo]Benzoate adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including HPLC for assay and impurity profiling, IR and NMR for structural confirmation, and loss on drying. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be opaque or stored in dark conditions to prevent degradation.

Specification

Item	Specification
Appearance	Orange to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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