Description

Methyl 3-Amino-8-Chloro-4H-Benzo[B]Thieno[2,3-D]Thiine-2-Carboxylate CAS NO 254982-11-1 is a high-purity, heterocyclic organic compound featuring a fused benzothienothiine core structure. This advanced pharmaceutical intermediate is valued for its role in the synthesis of novel active pharmaceutical ingredients (APIs) with potential therapeutic applications. It is primarily sought by research institutions and pharmaceutical manufacturers engaged in the development of new chemical entities, particularly in areas requiring complex heterocyclic scaffolds.

Application

This specialized chemical serves as a critical building block in several high-value research and development sectors.

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly for central nervous system (CNS) and oncological targets.
• Agrochemical Research: Used in the development of new pesticides and herbicides, leveraging its complex heterocyclic structure for bioactivity.
• Material Science: Potential monomer or additive in the creation of specialized organic electronic materials due to its fused ring system.
• Academic & Contract Research: Essential for medicinal chemistry programs in universities and CROs (Contract Research Organizations) exploring structure-activity relationships (SAR).
• Process Chemistry Development: Serves as a model compound for scaling up complex multi-step synthetic routes in pilot plants.

Basic Information

Item	Details
Product Name	Methyl 3-Amino-8-Chloro-4H-Benzo[B]Thieno[2,3-D]Thiine-2-Carboxylate
CAS No.	254982-11-1
Molecular Formula	C13H9ClN2O2S2
Molecular Weight	324.80 g/mol
Synonyms	Methyl 3-amino-8-chloro-4H-benzo[4,5]thieno[2,3-d]thiine-2-carboxylate; 254982-11-1; 3-Amino-8-chloro-4H-benzo[b]thieno[2,3-d]thiine-2-carboxylic acid methyl ester; Methyl 3-amino-8-chloro-4H-[1]benzothieno[2,3-d][1,3]thiine-2-carboxylate; Benzo[b]thieno[2,3-d]thiine-2-carboxylic acid, 3-amino-8-chloro-4H-, methyl ester
EINECS	Contact for details

Quality Control

Our production of Methyl 3-Amino-8-Chloro-4H-Benzo[B]Thieno[2,3-D]Thiine-2-Carboxylate adheres to stringent quality protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis. Certificates of Analysis (COA) detailing all specifications are provided to ensure traceability and compliance with your research or cGMP (current Good Manufacturing Practice) 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 opening to prevent degradation.

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)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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