Description

4-Methyl-3-Oxo-3,4-Dihydro-2H-1,4-Benzothiazine-6-Carboxylic Acid is a high-purity, heterocyclic carboxylic acid derivative with significant synthetic utility. This compound serves as a crucial advanced pharmaceutical intermediate, enabling the synthesis of complex molecules for research and development. It is primarily required by pharmaceutical manufacturers and research institutions engaged in the development of novel active pharmaceutical ingredients (APIs) and fine chemicals.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly in medicinal chemistry research.
• Organic Synthesis: Used as a versatile precursor for constructing complex heterocyclic frameworks and fused ring systems.
• Research & Development: Essential for academic and industrial R&D labs exploring new chemical entities and structure-activity relationships.
• Agrochemical Synthesis: Potential intermediate in the development of new crop protection agents and herbicides.
• Material Science: Investigated for the synthesis of specialty polymers and organic electronic materials.
• Chemical Reference Standard: Serves as a high-purity analytical standard for quality control and method development in analytical laboratories.

Basic Information

Product Name	4-Methyl-3-Oxo-3,4-Dihydro-2H-1,4-Benzothiazine-6-Carboxylic Acid
CAS No.	272437-91-9
Molecular Formula	C10H9NO3S
Molecular Weight	223.25 g/mol
Synonyms	4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylic acid; 6-Carboxy-4-methyl-2H-1,4-benzothiazin-3(4H)-one; 4-Methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazine-6-carboxylic acid; 272437-91-9; 4-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate; 1,4-Benzothiazine-6-carboxylic acid, 3,4-dihydro-4-methyl-3-oxo-
EINECS	Contact for details

Quality Control

Our 4-Methyl-3-Oxo-3,4-Dihydro-2H-1,4-Benzothiazine-6-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for pharmaceutical intermediate applications. Certificates of Analysis (COA) are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed and away from direct light exposure to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
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.