Description

(1R,3R)-Methyl 1-(Benzo[D][1,3]Dioxol-5-Yl)-2,3,4,9-Tetrahydro-1H-Pyrido[3,4-B]Indole-3-Carboxylate Hydrochloride is a high-purity, non-racemic chiral intermediate of significant importance in advanced pharmaceutical synthesis. This compound, with CAS number 171752-68-4, is a critical building block for the research and development of complex active pharmaceutical ingredients (APIs), particularly those targeting neurological pathways. It is essential for pharmaceutical manufacturers, contract research organizations (CROs), and academic institutions engaged in the synthesis of novel therapeutic agents.

Application

This chiral intermediate is designed for sophisticated chemical synthesis, primarily serving the pharmaceutical and life sciences sectors.

• Pharmaceutical Intermediate: A key chiral precursor in the multi-step synthesis of complex drug candidates, particularly for central nervous system (CNS) targets.
• Active Pharmaceutical Ingredient (API) Development: Used in the research and process development of new chemical entities (NCEs) where the specific (1R,3R) stereochemistry is required for biological activity.
• Contract Research & Manufacturing (CRO/CMO): Supplied to organizations specializing in custom synthesis and scale-up services for the pharmaceutical industry.
• Academic & Institutional Research: Utilized in medicinal chemistry programs for studying structure-activity relationships (SAR) and developing novel synthetic methodologies.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method development in API manufacturing.

Basic Information

Product Name	(1R,3R)-Methyl 1-(Benzo[D][1,3]Dioxol-5-Yl)-2,3,4,9-Tetrahydro-1H-Pyrido[3,4-B]Indole-3-Carboxylate Hydrochloride
CAS No.	171752-68-4
Molecular Formula	C21H20N2O4·HCl
Molecular Weight	400.86 g/mol (Free base: 364.40 g/mol)
Synonyms	Methyl (1R,3R)-1-(1,3-Benzodioxol-5-yl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylate hydrochloride; (1R,3R)-1-(Benzo[d][1,3]dioxol-5-yl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylic acid methyl ester hydrochloride; Tetrahydroharmine derivative hydrochloride; Chiral tetrahydro-β-carboline ester hydrochloride; (1R,3R)-THBC methyl ester HCl
EINECS	Contact for details

Quality Control

Our production of this advanced chiral intermediate adheres to strict quality management systems. Every batch is characterized using advanced analytical techniques including chiral HPLC, NMR, and mass spectrometry to confirm identity, stereochemical purity, and chemical purity. Certificates of Analysis (COA) detailing assay, enantiomeric excess (ee), and impurity profiles are provided and available upon request, supporting cGMP-compliant development workflows.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥98.0%
Enantiomeric Purity (Chiral HPLC)	≥99.0% ee
Water Content (KF)	≤1.0%
Residue on Ignition	≤0.2%
Heavy Metals	≤20 ppm
Single Unknown Impurity (HPLC)	≤0.5%
Total Impurities (HPLC)	≤2.0%

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