Description

Thiazolo[5,4-e][2,1]benzisoxazole (9Ci) is a complex heterocyclic organic compound with the CAS registry number 353800-03-0. This specialized chemical serves as a critical advanced intermediate in the synthesis of novel active pharmaceutical ingredients (APIs) and functional materials. It is primarily required by pharmaceutical R&D teams and fine chemical manufacturers engaged in developing new therapeutic agents and high-performance organic compounds.

Application

• Pharmaceutical Intermediate: A key building block in the research and synthesis of new drug candidates, particularly in oncology and central nervous system (CNS) therapeutic areas.
• Agrochemical Research: Used in the development of novel pesticides and herbicides, leveraging its unique heterocyclic structure for biological activity.
• Material Science: Serves as a precursor for organic electronic materials, including charge-transport layers and light-emitting components.
• Dye & Pigment Synthesis: Employed in creating specialized chromophores and fluorophores for high-value imaging and sensing applications.
• Academic & Contract Research: Utilized in university and CRO laboratories for methodological development and exploration of new chemical spaces.
• Custom Synthesis: A starting material for bespoke chemical synthesis projects requiring complex fused-ring systems.

Basic Information

Product Name	Thiazolo[5,4-e][2,1]benzisoxazole (9Ci)
CAS No.	353800-03-0
Molecular Formula	C9H5N3OS
Molecular Weight	203.22 g/mol
Synonyms	Thiazolo[5,4-e][2,1]benzisoxazole; [1,3]Thiazolo[5,4-e][1,2]benzisoxazole; 353800-03-0; Thiazolo(5,4-e)benzisoxazole; Thiazolo[5,4-e]benz[2,1]isoxazole; 9CI-Thiazolo[5,4-e][2,1]benzisoxazole
EINECS	Contact for details

Quality Control

Our production of Thiazolo[5,4-e][2,1]benzisoxazole (9Ci) adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for research and development applications. Each lot is characterized using advanced analytical techniques including NMR, HPLC, and mass spectrometry. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, handling and storage should minimize exposure to direct light.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
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.