Description

D-Tetrahydropalmatine is a purified, high-quality alkaloid compound derived from botanical sources, valued for its specific stereochemistry and biological activity. This product is essential for research and development in the pharmaceutical and nutraceutical sectors, where precise molecular structure and purity are critical for efficacy and safety. It serves as a key reference standard and active ingredient for manufacturers and research institutions focused on neurological and cardiovascular applications.

Application

• Pharmaceutical Reference Standard: Used for the qualitative and quantitative analysis of herbal extracts and finished products in quality control laboratories.
• Active Pharmaceutical Ingredient (API) Intermediate: Serves as a critical building block in the synthesis of advanced pharmaceutical compounds targeting the central nervous system.
• Nutraceutical Formulation: Incorporated into dietary supplements for its potential bioactive properties, requiring high-purity botanical extracts.
• Biochemical Research: Utilized in in vitro and in vivo studies to investigate mechanisms of action related to dopamine receptors and calcium channels.
• Analytical Chemistry: Acts as a calibration standard for HPLC, LC-MS, and other chromatographic methods in method development and validation.

Basic Information

Product Name	D-Tetrahydropalmatine
CAS No.	3520-14-7
Molecular Formula	C21H25NO4
Molecular Weight	355.43 g/mol
Synonyms	D-THP; (13aS)-2,3,9,10-Tetramethoxy-13a-methyl-5,8,13,13a-tetrahydro-6H-isoquinolino[2,1-b]isoquinoline; (-)-Tetrahydropalmatine; D-Form Tetrahydropalmatine; NSC 169916; L-Tetrahydropalmatine enantiomer; Corydalis B
EINECS	Contact for details

Quality Control

Our D-Tetrahydropalmatine is manufactured under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including chiral purity verification, to ensure it meets stringent specifications for pharmaceutical and research use. A detailed Certificate of Analysis (COA) providing batch-specific results for identity, purity, and impurities is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry 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 absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Assay (HPLC)	≥98.0%
Chiral Purity (HPLC)	≥99.0% (D-Isomer)
Loss on Drying	≤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.