Description

[1]Benzothieno[2,3-D]Pyridazine-4-Carboxylic Acid is a high-purity, heterocyclic carboxylic acid derivative that serves as a critical building block in advanced organic synthesis. This compound is valued for its unique fused-ring structure, which imparts specific electronic and steric properties essential for developing novel active compounds. It is primarily sought after by research and development teams in the pharmaceutical and agrochemical industries for the synthesis of new drug candidates and specialty chemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel therapeutic agents, particularly those targeting specific enzyme pathways.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides with unique modes of action.
• Material Science: Serves as a monomer or functional additive in the creation of specialty polymers and organic electronic materials.
• Academic & Contract Research: Employed in university and CRO laboratories for fundamental chemical research and method development.
• Dye & Pigment Synthesis: Acts as a starting material for creating complex heterocyclic dyes and colorants.

Basic Information

Product Name	[1]Benzothieno[2,3-D]Pyridazine-4-Carboxylic Acid
CAS No.	37412-20-7
Molecular Formula	C12H6N2O2S
Molecular Weight	242.25 g/mol
Synonyms	1-Benzothieno[2,3-d]pyridazine-4-carboxylic acid; Benzothieno[2,3-d]pyridazine-4-carboxylic acid; BTZ-4-COOH; 4-Carboxy-1-benzothieno[2,3-d]pyridazine; 37412-20-7; 1-Benzothieno[2,3-d]pyridazine-4-carboxylic acid (9CI)
EINECS	Contact for details

Quality Control

Our production of [1]Benzothieno[2,3-D]Pyridazine-4-Carboxylic Acid adheres to stringent in-process controls to ensure batch-to-batch consistency and high chemical purity. Every lot is fully characterized and undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

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)	≤ 20 ppm

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