Description

D2(3H),A-Naphthaleneacetic Acid, A-Cyano-7-[(3-Ethyl-2-Benzothiazolinylidene)Methyl]-4,4A,5,6-Tetrahydro-, Ethyl Ester is a specialized heterocyclic organic compound that serves as a key intermediate in advanced chemical synthesis. Its complex molecular structure, featuring a benzothiazole and tetrahydro-naphthalene core, makes it valuable for the development of functional dyes, pigments, and photoactive materials. This high-purity intermediate is primarily sought by R&D laboratories and manufacturers in the fine chemicals, specialty dyes, and advanced material science sectors.

Application

• Synthesis of Functional Dyes & Pigments: Acts as a crucial precursor for creating novel cyanine and polymethine dyes with specific optical properties.
• Advanced Material Research: Used in the development of organic semiconductors, non-linear optical (NLO) materials, and photo-sensitizers.
• Fluorescent Probe Development: Serves as a building block for synthesizing fluorescent markers and probes used in biochemical and diagnostic applications.
• Laser Dye & Optical Media: A key intermediate for compounds used in laser technology, optical data storage, and light-harvesting systems.
• Academic & Industrial R&D: Employed by research chemists for exploring new reactions and synthesizing complex heterocyclic target molecules.
• Specialty Chemical Manufacturing: Used in the production of high-value, low-volume chemicals for niche industrial applications.

Basic Information

Item	Details
Product Name	D2(3H),A-Naphthaleneacetic Acid, A-Cyano-7-[(3-Ethyl-2-Benzothiazolinylidene)Methyl]-4,4A,5,6-Tetrahydro-, Ethyl Ester
CAS No.	19208-19-6
Molecular Formula	C23H22N2O2S
Molecular Weight	390.50 g/mol
Synonyms	Ethyl 7-[(3-Ethyl-2(3H)-benzothiazolylidene)methyl]-4,4a,5,6-tetrahydro-1-oxo-1H-cyclopenta[b]naphthalene-2-carboxylate; 7-[(3-Ethyl-2-benzothiazolinylidene)methyl]-4,4a,5,6-tetrahydro-1-oxo-1H-cyclopenta[b]naphthalene-2-carboxylic Acid Ethyl Ester; A-Cyano-7-[(3-ethyl-2-benzothiazolinylidene)methyl]-4,4a,5,6-tetrahydro-D2(3H),A-naphthaleneacetic Acid Ethyl Ester; Cyanine Dye Intermediate; Benzothiazole-Naphthalene Derivative.
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. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your R&D and manufacturing processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Single Maximum Impurity (HPLC)	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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