Description

1H-Thieno[2,3-B][1,4]Oxazin-2(3H)-One CAS NO 158560-72-6 is a specialized heterocyclic organic compound featuring a fused thieno-oxazine ring system, which serves as a key synthetic intermediate and pharmacologically active scaffold. Its unique molecular architecture makes it highly valuable for constructing complex molecules in advanced research and development. This compound is primarily sought by pharmaceutical R&D and fine chemical synthesis sectors for developing novel active ingredients.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders.
• Agrochemical Research: Used in the development of new pesticides and herbicides, leveraging its heterocyclic core for bioactivity.
• Material Science: Serves as a precursor for organic electronic materials and functional polymers due to its conjugated system.
• Academic & Industrial R&D: Employed in medicinal chemistry programs for structure-activity relationship (SAR) studies and library synthesis.
• Chemical Biology: Utilized as a probe or ligand in biochemical assays to study enzyme inhibition or receptor binding.

Basic Information

Product Name	1H-Thieno[2,3-B][1,4]Oxazin-2(3H)-One
CAS No.	158560-72-6
Molecular Formula	C6H5NO2S
Molecular Weight	155.17 g/mol
Synonyms	1H-Thieno[2,3-b][1,4]oxazin-2(3H)-one; Thieno[2,3-b][1,4]oxazin-2(3H)-one; 2,3-Dihydro-1H-thieno[2,3-b][1,4]oxazin-2-one; 3,4-Dihydro-2H-thieno[2,3-b][1,4]oxazin-2-one; 158560-72-6; Thieno-oxazinone; TOXO
EINECS	Contact for details

Quality Control

Our production of 1H-Thieno[2,3-B][1,4]Oxazin-2(3H)-One adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment. We support cGMP and ISO compliant manufacturing for advanced applications.

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 incompatible materials such as strong oxidizing agents. For long-term storage, consider an inert atmosphere to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Related Substances (HPLC)	Any single impurity ≤ 0.5%, Total impurities ≤ 1.5%
Loss on Drying	≤ 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.