Description

D-Tetrandrine is a bisbenzylisoquinoline alkaloid derived from the roots of *Stephania tetrandra* and related plants. This compound is valued for its significant pharmacological activity, serving as a key reference standard and active pharmaceutical ingredient (API) in research and development. It is primarily utilized by the pharmaceutical, biotechnology, and nutraceutical industries for applications in cardiovascular research, anti-inflammatory studies, and as a calcium channel blocker.

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): Serves as a key component in the formulation of investigational drugs targeting hypertension and arrhythmias.
• Biomedical Research: Employed in *in vitro* and *in vivo* studies to investigate its effects as a natural calcium channel blocker and anti-inflammatory agent.
• Nutraceutical Development: Incorporated into high-end dietary supplement formulations where standardized botanical extracts are required.
• Academic Research: Used in university and institutional labs for pharmacological and phytochemical studies.

Basic Information

Product Name	D-Tetrandrine
CAS No.	518-34-3
Molecular Formula	C38H42N2O6
Molecular Weight	622.75 g/mol
Synonyms	(+)-Tetrandrine; Tetrandrine; Hanfangchin A; Fanchinin; NSC-77037; 6,6',7,12-Tetramethoxy-2,2'-dimethylberbaman; 1-Benzyl-2-methyl-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline dimer
EINECS	208-260-8

Quality Control

Our D-Tetrandrine is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity verification and identity confirmation by IR and MS. Certificates of Analysis (COA) detailing all test results are provided to ensure compliance with your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; ensure the container is kept sealed in a desiccated environment to maintain stability and potency.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥98.0%
Loss on Drying	≤1.0%
Residue on Ignition	≤0.1%
Heavy Metals (as Pb)	≤10 ppm

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