Description

4-Isothiazolecarbonitrile,5-(Ethylthio)-3-Methoxy-(9Ci) CAS NO 727685-39-4 is a specialized heterocyclic organic compound belonging to the isothiazole family, characterized by its cyano, ethylthio, and methoxy functional groups. This high-purity intermediate is critical for advanced chemical synthesis, offering a unique molecular scaffold for constructing complex molecules with tailored properties. It is primarily sought by research and development teams in the pharmaceutical and agrochemical sectors for applications in medicinal chemistry, crop protection, and material science.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for compounds targeting neurological or anti-infective pathways.
• Agrochemical Research: Used in the development of next-generation herbicides, fungicides, and insecticides, leveraging the bioactivity of the isothiazole core.
• Material Science: Acts as a precursor for functional polymers, liquid crystals, or organic electronic materials due to its conjugated structure and functional handles.
• Chemical Synthesis: Employed in organic chemistry research for constructing complex heterocycles and exploring new reaction methodologies.
• Bioconjugation & Probe Development: The reactive cyano group can be utilized for creating biochemical probes or for bioconjugation applications in life sciences.

Basic Information

Product Name	4-Isothiazolecarbonitrile,5-(Ethylthio)-3-Methoxy-(9Ci)
CAS No.	727685-39-4
Molecular Formula	C7H8N2OS2
Molecular Weight	200.28 g/mol
Synonyms	5-(Ethylthio)-3-methoxy-4-isothiazolecarbonitrile; 3-Methoxy-5-(ethylthio)-4-isothiazolecarbonitrile; 4-Isothiazolecarbonitrile, 5-(ethylthio)-3-methoxy-; 727685-39-4; 5-Ethylsulfanyl-3-methoxy-isothiazole-4-carbonitrile
EINECS	Contact for details

Quality Control

Our 4-Isothiazolecarbonitrile,5-(Ethylthio)-3-Methoxy-(9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR/IR for structural confirmation, to ensure it meets the high standards required for research and development. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents. 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%
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.