Description

D2(3H),A-Naphthalenemalononitrile, 7-[(3-Ethyl-2-Benzothiazolinylidene)Methyl]-4,4A,5,6-Tetrahydro- is a specialized heterocyclic organic compound that serves as a critical intermediate in advanced chemical synthesis. Its unique molecular structure, featuring a benzothiazole moiety fused with a naphthalene-malononitrile system, makes it a valuable precursor for the development of functional dyes, pigments, and optoelectronic materials. This high-purity intermediate is essential for research and production in the fields of organic electronics and specialty chemical manufacturing.

Application

• Key Intermediate for Functional Dyes: Serves as a core building block in the synthesis of near-infrared (NIR) absorbing dyes and fluorescent markers.
• Organic Semiconductor Precursor: Used in the research and development of novel organic light-emitting diodes (OLEDs) and photovoltaic materials.
• Non-Linear Optical (NLO) Materials: A critical component in the synthesis of chromophores for advanced photonic and electro-optic applications.
• Chemical Research & Development: Employed in academic and industrial R&D for exploring new heterocyclic compounds and their properties.
• Specialty Pigment Synthesis: Acts as an intermediate for creating high-performance, complex colorants with specific light-fastness and stability properties.

Basic Information

Product Name	D2(3H),A-Naphthalenemalononitrile, 7-[(3-Ethyl-2-Benzothiazolinylidene)Methyl]-4,4A,5,6-Tetrahydro-
CAS No.	20749-75-1
Molecular Formula	C₂₁H₁₇N₃S
Molecular Weight	343.44 g/mol
Synonyms	7-[(3-Ethyl-2-benzothiazolylidene)methyl]-4,4a,5,6-tetrahydro-2(3H)-naphthalenemalononitrile; 2(3H)-Naphthalenemalononitrile, 7-[(3-ethyl-2-benzothiazolinylidene)methyl]-4,4a,5,6-tetrahydro-; 7-[(3-Ethyl-2-benzothiazolinylidene)methyl]-4,4a,5,6-tetrahydro-2(3H)-naphthalenemalononitrile; D2(3H)-Naphthalenemalononitrile derivative; Benzothiazole-naphthalene conjugate; NIR dye intermediate CAS 20749-75-1
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high purity, which is critical for sensitive optoelectronic applications. Quality is verified through comprehensive analytical techniques including HPLC, NMR, and mass spectrometry. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your R&D and quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The compound is light-sensitive; prolonged exposure to light should be avoided to maintain stability.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (HPLC)	Conforms
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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