Intermediates

3-(Methylamino)-1-(2-thienyl)propan-1-one hydrochloride

  • CAS No.667465-15-8 / 645411-16-1
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity 3-(methylamino)-1-(2-thienyl)-1-propanone (CAS: 667465-15-8) is a key intermediate for the synthesis of the antidepressant duloxetine. Our company provides established large-scale production and supply capabilities, alongside comprehensive custom contract manufacturing services.

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Product Technical Details

Product Overview

3-(Methylamino)-1-(2-thienyl)-1-propanone serves as a critical Key Starting Material (KSM) for the synthesis of the antidepressant and analgesic drug duloxetine. Unlike conventional intermediates dependent on dimethylamine scaffolds, our product features the target monomethylamine moiety pre-integrated at the molecular level. Leveraging advanced microchannel continuous flow processing, we achieve ultra-short thermal residence times and precise kinetic control to physically suppress side reactions. This delivers a robust foundational supply for downstream pharmaceutical manufacturers, eliminating hazardous chemical modification steps and streamlining overall synthesis efficiency.

Key Advantages for Downstream Pharmaceutical Manufacturers

  • Streamlined Synthetic Route: Delivers the target secondary amine scaffold directly, allowing downstream production lines to bypass high-risk chloroformate reagents and entirely eliminate labor-intensive demethylation hydrolysis and desalting/extraction steps.

  • Enhanced EHS Compliance: Prevents the formation of highly polluting, high-treatment-cost halogenated and phenolic wastewaters at the source, substantially alleviating environmental, health, and safety (EHS) regulatory burdens.

  • Catalyst Protection: The continuous flow methodology effectively prevents the formation of self-crosslinked polymers typically caused by prolonged thermal exposure in batch reactors. This eliminates trace impurities that could poison and deactivate precious metal catalysts during downstream chiral reduction steps.

  • Cost Optimization: Drastically reduces the number of unit operations and shortens batch cycle times, delivering a comprehensive advantage in Total Cost of Ownership (TCO).

Specification Options

To accommodate diverse production line charging, logistics, and storage requirements, we offer two distinct physical forms:

  • High-Activity Free Base (CAS: 667465-15-8): A clear liquid purified via ultra-low pressure short-path distillation. Engineered for maximum throughput efficiency, it allows direct, seamless transfer into downstream reactors without unnecessary salt conversion. For extended shipping, it is supplied in hermetically sealed high-purity nitrogen environments or stabilized within customized solvent matrices.

  • High-Stability Hydrochloride Salt (CAS: 645411-16-1): A high-purity white crystalline powder formulated for secure long-term warehousing and standard logistics conditions. Its superior physical stability makes it a drop-in replacement that seamlessly upgrades existing dimethylamine hydrochloride supply chains.

Technical Specifications

ParameterSpecification
CAS Number667465-15-8 (Free Base) / 645411-16-1 (Hydrochloride Salt)
Purity> 98.0% (HPLC)
Appearance (Free Base)Colorless to slightly yellow clear liquid
Appearance (Hydrochloride Salt)White to off-white crystalline powder
SolubilityReadily soluble in standard organic synthesis solvents or water (depending on form)
Storage Conditions

Free Base: Store under nitrogen, refrigerated, protected from light

Hydrochloride Salt: Store in a cool, dry place; keep container tightly closed and protected from light

Direct Manufacturer & Proprietary Continuous Flow Technology Advantages

As a direct manufacturer, NINGBO INNO PHARMCHEM CO.,LTD. operates proprietary, in-house engineered tubular continuous flow reactor systems.

Our core technical edge lies in exceptional batch-to-batch consistency and inherent process safety, guaranteeing that every production run adheres to stringent pharmaceutical-grade specifications.

We are committed to building long-term strategic partnerships with distributors and end-user manufacturers, backed by a reliable and resilient supply chain.