Description

Ethyl 4-(3-Oxobenzo[D]Isothiazol-2(3H)-Yl)Benzoate is a high-purity, synthetic organic compound belonging to the benzoisothiazolone class, serving as a critical advanced intermediate in modern chemical synthesis. Its value lies in its unique heterocyclic structure, which provides a versatile scaffold for constructing more complex molecules with targeted biological or material properties. This product is essential for research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly those targeting neurological or anti-inflammatory pathways.
• Agrochemical Research: Used in developing new generations of herbicides, fungicides, or insecticides that require the benzoisothiazolone pharmacophore.
• Material Science: Acts as a precursor for functional polymers, liquid crystals, or organic electronic materials due to its rigid, planar structure.
• Chemical Synthesis: Serves as a versatile intermediate for further functionalization, enabling the creation of libraries of compounds for high-throughput screening.
• Dye & Pigment Intermediate: Utilized in the synthesis of specialized dyes and pigments where the isothiazolone moiety contributes to color fastness and stability.

Basic Information

Product Name	Ethyl 4-(3-Oxobenzo[D]Isothiazol-2(3H)-Yl)Benzoate
CAS No.	78471-81-5
Molecular Formula	C16H13NO3S
Molecular Weight	299.35 g/mol
Synonyms	Ethyl 4-(3-oxo-1,2-benzisothiazol-2(3H)-yl)benzoate; 2-(4-Ethoxycarbonylphenyl)-1,2-benzisothiazol-3(2H)-one; Benzoic acid, 4-(3-oxo-1,2-benzisothiazol-2(3H)-yl)-, ethyl ester; Ethyl 4-(3-oxobenzo[d]isothiazol-2(3H)-yl)benzoate; 78471-81-5; 2-(4-Carbethoxyphenyl)-1,2-benzisothiazolin-3-one
EINECS	Contact for details

Quality Control

Our Ethyl 4-(3-Oxobenzo[D]Isothiazol-2(3H)-Yl)Benzoate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for research and production use. Certificates of Analysis (COA) documenting batch-specific results are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from strong oxidizing agents and bases. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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