Description

4-Isothiazolecarbonitrile,3-Ethoxy-5-(Ethylthio)-(9Ci) is a specialized heterocyclic organic compound with the CAS registry number 728037-90-9, serving as a valuable synthetic intermediate in advanced chemical synthesis. Its unique isothiazole core functionalized with ethoxy, ethylthio, and nitrile groups makes it a versatile building block for constructing complex molecular architectures. This high-purity intermediate is primarily sought by research and development teams in the pharmaceutical and agrochemical industries for the development of novel active ingredients.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders or possessing antimicrobial properties.
• Agrochemical Research: Used in the development of new-generation herbicides, fungicides, and insecticides, leveraging the bioactivity of the isothiazole moiety.
• Material Science Precursor: Serves as a monomer or functionalization agent in the creation of specialty polymers and advanced organic electronic materials.
• Ligand Synthesis: Utilized in organometallic chemistry for the preparation of complex ligands used in catalysis and coordination chemistry.
• Chemical Biology Probe Development: Acts as a core structure for creating molecular probes to study enzyme function and biological pathways.

Basic Information

Product Name	4-Isothiazolecarbonitrile,3-Ethoxy-5-(Ethylthio)-(9Ci)
CAS No.	728037-90-9
Molecular Formula	C8H10N2OS2
Molecular Weight	214.31 g/mol
Synonyms	3-Ethoxy-5-(ethylthio)-4-isothiazolecarbonitrile; 4-Cyano-3-ethoxy-5-ethylthioisothiazole; 5-(Ethylthio)-3-ethoxy-4-isothiazolecarbonitrile; 728037-90-9; 3-Ethoxy-5-ethylsulfanyl-1,2-thiazole-4-carbonitrile; 4-Isothiazolecarbonitrile, 3-ethoxy-5-(ethylthio)-; 5-(Ethylthio)-3-ethoxyisothiazole-4-carbonitrile
EINECS	Contact for details

Quality Control

Our 4-Isothiazolecarbonitrile,3-Ethoxy-5-(Ethylthio)-(9Ci) is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity for research and scale-up applications. Each lot undergoes comprehensive analytical characterization, including HPLC for purity and identity confirmation via NMR and mass spectrometry. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting all critical quality attributes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider storing under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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