Description

4-Ethyl-1,2,3,4-Tetrahydroisoquinoline is a versatile heterocyclic amine building block of significant interest in advanced organic synthesis. Its value lies in its functionalized tetrahydroisoquinoline scaffold, which serves as a key precursor for developing pharmacologically active compounds and specialty chemicals. This intermediate is particularly sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and material science industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds targeting neurological and cardiovascular disorders.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators due to its bioactive heterocyclic core.
• Organic Ligand Precursor: Serves as a starting material for synthesizing chiral ligands and catalysts used in asymmetric synthesis and metal-organic frameworks (MOFs).
• Material Science Research: Employed in the development of advanced organic electronic materials, dyes, and photoactive compounds.
• Chemical Research & Development: A valuable building block for medicinal chemistry programs and the exploration of new chemical entities in academic and industrial R&D labs.

Basic Information

Product Name	4-Ethyl-1,2,3,4-Tetrahydroisoquinoline
CAS No.	154140-71-3
Molecular Formula	C11H15N
Molecular Weight	161.24 g/mol
Synonyms	4-Ethyl-1,2,3,4-tetrahydroisoquinoline; 4-Ethyl-1,2,3,4-tetrahydro-isoquinoline; 1,2,3,4-Tetrahydro-4-ethylisoquinoline; 4-Ethyl-THIQ; 4-Ethyl-1,2,3,4-tetrahydroquinoline (incorrect but common); 4-Et-THIQ; 4-Ethyl-3,4-dihydro-1H-isoquinoline
EINECS	Contact for details

Quality Control

Our 4-Ethyl-1,2,3,4-Tetrahydroisoquinoline is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all specified parameters to support your quality assurance protocols and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to exclude moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 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.