Description

Ethyl 7-Oxo-4,7-Dihydroisothiazolo[4,3-D]Pyrimidine-3-Carboxylate is a high-purity, heterocyclic organic compound that serves as a critical synthetic intermediate in advanced pharmaceutical research and development. Its unique fused-ring structure makes it a valuable building block for creating novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring complex molecular architectures. This compound is essential for medicinal chemists and R&D teams in the pharmaceutical, agrochemical, and fine chemical industries seeking to develop new drug candidates and specialty chemicals.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly for central nervous system (CNS) and anti-infective therapies.
• Medicinal Chemistry Research: Used in structure-activity relationship (SAR) studies and library synthesis for high-throughput screening.
• Agrochemical Development: Serves as a precursor in the research and synthesis of new generation pesticides and herbicides.
• Fine Chemical Synthesis: Employed in the production of complex, high-value specialty chemicals and advanced materials.
• Academic & Institutional R&D: Utilized in universities and research institutes for exploratory chemistry and the development of new synthetic methodologies.
• Contract Research & Manufacturing (CRAM): Supplied to organizations offering custom synthesis and process development services.

Basic Information

Product Name	Ethyl 7-Oxo-4,7-Dihydroisothiazolo[4,3-D]Pyrimidine-3-Carboxylate
CAS No.	54968-79-5
Molecular Formula	C9H9N3O3S
Molecular Weight	239.25 g/mol
Synonyms	Ethyl 7-oxo-4,7-dihydro-[1,2]thiazolo[4,3-d]pyrimidine-3-carboxylate; 7-Oxo-4,7-dihydroisothiazolo[4,3-d]pyrimidine-3-carboxylic acid ethyl ester; Isothiazolo[4,3-d]pyrimidine-3-carboxylic acid, 4,7-dihydro-7-oxo-, ethyl ester; Ethyl 7-oxo-4H-isothiazolo[4,3-d]pyrimidine-3-carboxylate; 54968-79-5; UNII-9V2I2C6Q3F
EINECS	Contact for details

Quality Control

Our Ethyl 7-Oxo-4,7-Dihydroisothiazolo[4,3-D]Pyrimidine-3-Carboxylate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is supported by a comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles. We adhere to cGMP guidelines where applicable, and our quality protocols are designed to meet the stringent requirements of pharmaceutical R&D and commercial production.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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