Description

Ethyl 3-Oxo-3,4-Dihydro-2H-1,4-Benzothiazine-2-Carboxylate is a high-purity organic compound, identified by CAS number 28731-96-6, that serves as a critical synthetic intermediate in advanced chemical manufacturing. Its value lies in its unique benzothiazine core, which is a privileged scaffold for developing compounds with targeted biological and material properties. This product is essential for research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to build novel molecular architectures.

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 the development of new herbicides, fungicides, and insecticides due to its heterocyclic structure.
• Organic Synthesis Reagent: Employed in academic and industrial R&D for constructing complex benzothiazine-based molecules.
• Material Science Precursor: Acts as a starting material for creating specialized dyes, pigments, or organic electronic materials.
• Chemical Reference Standard: Serves as a high-purity standard for analytical method development and quality control in chemical production.

Basic Information

Product Name	Ethyl 3-Oxo-3,4-Dihydro-2H-1,4-Benzothiazine-2-Carboxylate
CAS No.	28731-96-6
Molecular Formula	C11H11NO3S
Molecular Weight	237.27 g/mol
Synonyms	Ethyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-2-carboxylate; 2H-1,4-Benzothiazine-2-carboxylic acid, 3,4-dihydro-3-oxo-, ethyl ester; Ethyl 3-oxo-4H-1,4-benzothiazine-2-carboxylate; 3-Oxo-3,4-dihydro-2H-1,4-benzothiazine-2-carboxylic acid ethyl ester; 28731-96-6; 1,4-Benzothiazine-2-carboxylic acid, 3,4-dihydro-3-oxo-, ethyl ester
EINECS	Contact for details

Quality Control

Our Ethyl 3-Oxo-3,4-Dihydro-2H-1,4-Benzothiazine-2-Carboxylate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency, meeting the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee full traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials. 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
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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