Description

3,4-Dihydro-6,7-Dimethoxy-2-Methylisoquinolinium Chloride is a high-purity, versatile isoquinolinium salt used as a critical synthetic intermediate and building block in advanced organic chemistry. Its value lies in its well-defined structure, which enables the synthesis of complex nitrogen-containing heterocycles for pharmaceutical and agrochemical research. This compound is essential for R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries seeking to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of potential therapeutic agents, including alkaloid derivatives and central nervous system (CNS) active compounds.
• Agrochemical Research: Used as a building block for developing novel pesticides, herbicides, and plant growth regulators.
• Fine Chemical Synthesis: Employed in the preparation of complex dyes, pigments, and specialty chemicals requiring the isoquinoline scaffold.
• Academic & Industrial R&D: Serves as a standard reagent in methodological studies and for exploring new catalytic and synthetic routes.
• Material Science: Investigated for the development of organic semiconductors, ligands for metal complexes, and ionic liquids.

Basic Information

Product Name	3,4-Dihydro-6,7-Dimethoxy-2-Methylisoquinolinium Chloride
CAS No.	553-28-6
Molecular Formula	C₁₂H₁₆ClNO₂
Molecular Weight	241.71 g/mol
Synonyms	6,7-Dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolinium chloride; 2-Methyl-6,7-dimethoxy-3,4-dihydroisoquinolinium chloride; 1,2,3,4-Tetrahydro-6,7-dimethoxy-2-methylisoquinolinium chloride; 6,7-Dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline hydrochloride; NSC 403697; Isoquinolinium, 3,4-dihydro-6,7-dimethoxy-2-methyl-, chloride
EINECS	209-044-4

Quality Control

Our 3,4-Dihydro-6,7-Dimethoxy-2-Methylisoquinolinium Chloride is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and FTIR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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