Cepharanthine Powder

Derived from the roots of Stephania species such as Stephania cepharantha and Stephania tetrandra, natural Cepharanthine powder is a specialized bisbenzylisoquinoline alkaloid valued for its distinct molecular structure and biological activity. Through solvent extraction, liquid separation, and precision crystallization, raw Stephania root material is refined into a stable, high-purity compound. Cepharanthine is widely studied in pharmacology and biochemistry for its cell membrane stabilizing effects, immune modulating properties, and potential application in antiviral research.

As an audited B2B supplier, Xi'an Haoze Biotechnology Co., Ltd supplies high-grade standardized bulk Cepharanthine powder to pharmaceutical research facilities, dietary supplement formulators, and global distributors. We provide standardized raw material with an active alkaloid purity of 98% or higher, verified through liquid chromatography testing. Our processing lines support custom mesh sizing, batch blending, specialized protective packaging, and international export accompanied by complete analytical documentation.

Product Specification

What is Cepharanthine powder and how is it purified from natural Stephania root?

Cepharanthine is a naturally occurring alkaloid belonging to the bisbenzylisoquinoline family. In nature, it accumulates in the tuberous roots of specific Stephania vines native to East and Southeast Asia. Obtaining high-purity powder requires multi-step extraction using alcohol or organic solvents, followed by acid-base liquid separation to isolate the alkaloid fraction from natural resins, fats, and water-soluble plant sugars.

The crude alkaloid fraction then undergoes fractional crystallization and silica gel column separation to isolate pure Cepharanthine from related alkaloids such as tetrandrine and fangchinoline. The resulting purified substance is spray-dried or vacuum-dried into a fine, stable powder suitable for standardized manufacturing and scientific evaluation.

What biological mechanisms make pure Cepharanthine a focus of modern research?

Scientific interest in Cepharanthine centers on its ability to interact with cellular membranes and lipid bilayers. Research indicates that the molecule helps stabilize plasma membranes, reduce lipid peroxidation, and regulate membrane fluidity under environmental stress. These fundamental physical mechanisms contribute to its observed protective effects against cellular damage.

Furthermore, academic and medical studies investigate Cepharanthine for its immunomodulatory potential, leukocyte stimulation, and inhibitory effects on inflammatory cytokine pathways. In recent years, high-throughput screening studies have also highlighted its potential broad-spectrum antiviral activity, making it a subject of interest in respiratory and viral research programs.

What quality control standards apply when purchasing bulk alkaloid raw materials?

Because Cepharanthine is a potent plant alkaloid, strict quality assurance is critical for commercial purchasers. The most important metric is assay purity, typically established via High-Performance Liquid Chromatography. Suppliers must provide clear chromatograms confirming that total active alkaloid content meets or exceeds 98%, while restricting related alkaloid impurities to minimal levels.

Physical parameters such as residual solvent levels, moisture content, and heavy metal counts must also conform to strict international standards. Low loss on drying ensures powder stability during storage, preventing chemical degradation or physical clumping caused by ambient humidity.

1. Industrial Extraction and Chromatographic Isolation Protocols

Producing consistent batches of high-purity alkaloid powder requires structured industrial processing. Fresh Stephania roots are harvested, washed, dried, and ground into coarse granules before entering continuous counter-current extraction systems. Solvent selection and temperature control during this phase determine both the overall yield and chemical integrity of the active molecules.

Following primary extraction, automated chromatography equipment isolates the target Cepharanthine molecule. Maintaining exact pH ranges during acid-base precipitation ensures that unwanted plant compounds are eliminated, yielding a reliable crystalline raw material with consistent physical properties.

2. Formulating Cepharanthine in Specialized Health and Research Products

Formulators integrating Cepharanthine into commercial or laboratory applications must consider its chemical solubility and physical characteristics. The pure powder is sparingly soluble in plain water but dissolves readily in organic solvents such as ethanol, chloroform, and dilute acid solutions.

For oral solid dosage forms like capsules or tablets, specialized carriers, micro-encapsulation, or lipid-based suspension systems are often employed to enhance digestive dissolution and biological absorption. Combining the powder with inert excipients like microcrystalline cellulose ensures uniform dispersion during high-speed encapsulation runs.

3. Regulatory Safety Documentation and Quality Verification for Export

Global trade in botanical alkaloids demands clear compliance documentation to navigate customs and regional health authority requirements. Bulk buyers require verified analytical reports that validate both the chemical identity and safety profile of each production lot.

Essential documentation includes batch-specific Certificates of Analysis, Gas Chromatography reports for residual solvents, Inductively Coupled Plasma Mass Spectrometry reports for heavy metals, and Material Safety Data Sheets outlining safe handling procedures for industrial personnel.

4. OEM Processing and Custom Packaging Capabilities

Working with an experienced contract processor allows product developers to tailor raw material specifications to exact manufacturing requirements. Custom capabilities range from particle size reduction using jet milling to specialized moisture-proof packaging solutions.

Contract options also include multi-ingredient powder blending, capsule filling, and custom bottle or pouch packaging. Providing turnkey services helps brand owners streamline their supply chains, reducing lead times from raw material sourcing to final packaging.

Xi'an Haoze Biotechnology Co., Ltd provides flexible processing options for industrial ingredient clients and product developers:

• Particle Size Adjustment: Custom micronization and jet milling from standard 80 mesh down to ultrafine powder grades.
• Custom Purity Grades: Standardized 98% HPLC powder alongside specialized research-grade purity specifications.
• Capsule Processing: Hard gelatin and HPMC vegetable encapsulation in size 0 and 00 options.
• Specialized Packaging: Custom unit packaging including 100g, 500g, and 1kg aluminum foil bags, or 25kg sealed fiber drums.

• Audited Operations: Processing managed under certified ISO 22000, ISO 9001, Kosher, and Halal operational guidelines.
• HPLC Identity & Assay Verification: Batch-specific testing ensuring verified active alkaloid purity and low impurity profiles.
• Traceable Supply Logistics: Full raw material identification and lot tracking from crude root sourcing to finished drum packaging.
• Complete Regulatory Files: Complete export support including Material Safety Data Sheets, Certificates of Analysis, and Non-GMO declarations.

• Express Courier Handling: Fast door-to-door transit via DHL, FedEx, or UPS within 3 to 7 business days for laboratory samples and urgent test batches.
• Commercial Air Freight: Reliable airport-to-airport transport taking 5 to 10 days for medium orders between 50 kg and 500 kg.
• Bulk Sea Transport: Cost-effective ocean container shipping for large commercial shipments exceeding 500 kg, supported by complete customs documentation.

Interested in sourcing high-purity Cepharanthine powder or discussing custom contract processing options? Reach out to our technical account team today for specification sheets, current pricing, and evaluation samples.

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