Description

Thieno[2,3-D]Pyridazine-4,7-Diol is a heterocyclic organic compound that serves as a versatile and high-value synthetic intermediate in advanced chemical manufacturing. Its fused thienopyridazine structure makes it a critical building block for the development of novel pharmaceuticals and functional materials. This compound is primarily sought by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for creating new molecular entities with targeted properties.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for candidates targeting central nervous system (CNS) disorders, inflammation, and oncology.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its heterocyclic core for bioactivity.
• Material Science: Serves as a building block for organic electronic materials, such as organic light-emitting diodes (OLEDs) and semiconductors, due to its conjugated system.
• Dye & Pigment Synthesis: Employed in the creation of novel dyes and pigments with specific light-absorption or fluorescence properties.
• Academic & Contract Research: Utilized in university and CRO laboratories for methodological development and exploration of new chemical spaces in medicinal chemistry.
• Ligand Synthesis: Acts as a starting material for synthesizing complex ligands used in catalysis and metal-organic frameworks (MOFs).

Basic Information

Product Name	Thieno[2,3-D]Pyridazine-4,7-Diol
CAS No.	91533-21-0
Molecular Formula	C6H4N2O2S
Molecular Weight	168.17 g/mol
Synonyms	4,7-Dihydroxythieno[2,3-d]pyridazine; Thieno[2,3-d]pyridazine-4,7-dione (tautomer); 4,7-Thieno[2,3-d]pyridazinediol; 4,7-Dihydroxythienopyridazine; 91533-21-0; Thienopyridazinediol; 4,7-Pyridazinediol, thieno[2,3-d]-
EINECS	Contact for details

Quality Control

Our Thieno[2,3-D]Pyridazine-4,7-Diol is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles. We support cGMP compliance for pharmaceutical applications and can provide material to meet specific customer specifications and regulatory requirements.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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