Description

Thieno[3,4-D]Isoxazole, 4,6-Dihydro-, 5,5-Dioxide (9Ci) is a specialized heterocyclic compound featuring a fused thiophene and isoxazole ring system, which is a key structural motif in advanced organic synthesis. This compound matters as a high-value chemical building block and pharmaceutical intermediate, enabling the development of novel molecules with potential biological activity. It is primarily needed by research institutions and industrial R&D teams in the pharmaceutical, agrochemical, and material science sectors for creating new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders or possessing anti-inflammatory properties.
• Agrochemical Research: Used as a building block for developing new generations of herbicides, fungicides, or insecticides with unique modes of action.
• Material Science: Acts as a monomer or functional additive in the research of advanced polymers, organic semiconductors, or nonlinear optical (NLO) materials.
• Organic Synthesis & Catalysis: Employed as a versatile scaffold in methodological chemistry research for constructing complex heterocyclic libraries.
• Academic & Contract Research: Essential for fundamental chemical research in universities and for proprietary compound library synthesis in contract research organizations (CROs).

Basic Information

Product Name	Thieno[3,4-D]Isoxazole, 4,6-Dihydro-, 5,5-Dioxide (9Ci)
CAS No.	146697-42-9
Molecular Formula	C5H3NO3S
Molecular Weight	157.15 g/mol
Synonyms	4,6-Dihydrothieno[3,4-d]isoxazole 5,5-Dioxide; Thieno[3,4-d]isoxazole, 4,6-dihydro-, 5,5-dioxide; 4H-Thieno[3,4-d]isoxazole, 5,5-dioxide; 4,6-Dihydro-5,5-dioxothieno[3,4-d]isoxazole; Thienoisoxazoline dioxide; 146697-42-9 (CAS).
EINECS	Contact for details

Quality Control

Our Thieno[3,4-D]Isoxazole, 4,6-Dihydro-, 5,5-Dioxide (9Ci) is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and available upon request to support your research 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 (15-25°C). Keep away from heat sources and 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
Identification (NMR)	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.