Our factory has over 10 years of experience in synthetic raw material R&D, manufacturing and cross-border export. We own a standardized industrial park covering 10,000 square meters, realizing fully independent production covering chemical synthesis, extraction & purification, aseptic sieving and vacuum packaging without outsourcing, with full-process independent quality control.
Melatonin is a popular synthetic raw material for laboratory research, produced via refined chemical synthesis routes with precisely controlled reaction parameters to minimize impurity by-products. Crude materials go through three-tier purification processes including recrystallization, desalination filtration and gradient reversed-phase chromatography to thoroughly separate residual intermediates, heavy metals, trace organic solvents and isomer impurities. The finished product is uniform, fine white crystalline powder with excellent solubility, forming clear solutions without sediment. Its physical and chemical properties stay stable during long-distance sea transportation under variable temperature and humidity, free from caking, discoloration or purity degradation. It meets the requirements of in-vitro scientific experiments for university labs, biological R&D enterprises and third-party testing institutions.
Six Core Competitive Advantages
1. Stable 99% Ultra-High Purity with Full Test Documents Supporting Third-Party Re-Inspection
Ordinary melatonin raw materials on the market only reach 95%-98% purity, while our products adopt three-stage progressive refining purification with stable HPLC tested purity ≥99%. Our impurity control standards exceed the general industrial norms: single impurity ＜0.1%, total impurity ＜0.5%, moisture ≤3%, heavy metals and ignition residues all fully compliant.
Complete test documents are attached to every batch shipment, including COA certificate, HPLC chromatogram, melting point test report, moisture and ash inspection records. Batch numbers, feeding logs and test data are fully traceable, supporting third-party re-inspection at local laboratories of overseas clients. No exaggerated purity labels or unstable batch quality differences.
2. Mature & Stable Synthesis Purification Craft with Outstanding Physical & Chemical Stability
- Precise chemical synthesis: Closed-loop temperature & pressure controlled reaction system reduces by-products and cuts impurity generation from the source;
- Three-stage combined purification: Recrystallization removes macromolecular impurities, chromatography separates isomers, precision filtration eliminates trace solvent residues for triple-layer quality control;
- Low-temperature vacuum drying: Low-temperature dehydration avoids molecular structural damage, maintaining stable quality during long-term storage and transnational transportation;
- Aseptic sieving procedure: Micron-level sterile sieving delivers delicate and even powder, satisfying operation standards of various cell and molecular in-vitro experiments.
3. Self-Owned 100,000-Class Clean Production Factory with Permanent Sufficient Stock
The factory has independent synthesis workshop, chromatography purification workshop, sterile drying workshop and constant temperature & humidity finished goods warehouse. It is equipped with full professional equipment including large synthesis reactors, industrial preparative liquid chromatographs, vacuum dryers and HPLC testing instruments. An independent R&D laboratory and QC center are set up, with full-time R&D and quality inspection staff tracking process optimization and finished product sampling tests throughout the year.
Permanent stable stock of Melatonin is available, supporting small sample trial orders, medium bulk orders and full-container export orders. Long-term cooperative clients enjoy priority production scheduling during peak sales seasons. Direct factory sales eliminate markup from multiple middlemen, offering highly competitive ex-factory prices for overseas buyers.
4. ISO9001 Standard Full-Process QC System with Complete Production Traceability
The factory establishes closed-loop quality control procedures in accordance with the ISO9001 international quality management system covering all production links:
All incoming raw materials pass full purity and impurity inspection before production; unqualified materials are rejected directly and prohibited from entering the production line. Sampling inspections are conducted every 2 hours during synthesis, purification and drying to monitor real-time reaction conditions. Multiple samples of finished goods are extracted for full re-inspection of purity, solubility and stability; defective products are scrapped and never delivered out of the factory. Feeding records, equipment operation logs, test reports, packaging and delivery documents are archived permanently for customs inspection and client verification at any time. All workshops maintain constant temperature & humidity with regular sterilization to restrict dust and microbial contamination, ensuring consistent quality of every batch of raw materials.
5. Compliant Blank Neutral Export Packaging & Customization Service for Global Customs Clearance
Neutral compliant packaging specially designed for cross-border trade avoids platform violations and brand infringement risks:
Inner package: Sterile transparent vials sealed under vacuum, fully blank without any words, logos or printed marks, sealed with aluminum plastic caps for moisture and light resistance. Outer package: Thick shockproof foam lining plus multi-layer compression-resistant export cartons lined with moisture-proof aluminum foil bags to prevent dampness and breakage during sea transportation.
Diversified customization options are available: Adjustable filling volume per vial, large bulk powder packages, customized printing on neutral outer cartons. We can adjust packaging specifications and supporting customs & test documents according to import regulations of different countries to simplify clients’ clearance procedures. The shelf life reaches 24 months under sealed refrigerated storage as required.
6. One-Stop Professional Foreign Trade Service with Long-Term Complete After-Sales Support
Our foreign trade team has years of practical experience in global export of synthetic raw materials, familiar with import regulations and customs clearance policies for laboratory raw materials in Europe, America, Southeast Asia, Middle East, Australia, Japan, South Korea and most regions worldwide:
- Sample support: Small samples are available for clients to conduct laboratory testing before placing bulk orders;
- Fast shipment: In-stock goods complete filling, inspection and packaging for delivery within 3-7 working days; customized specifications are delivered strictly on agreed schedules;
- Multiple stable international special logistics lines with fully sealed parcel protection and complete compensation mechanisms for loss or damage;
- Exclusive one-on-one foreign trade specialists provide full follow-up service, timely reply to messages across time zones, covering inquiry, parameter confirmation, document issuance, logistics tracking and basic technical consultation;
- Long-term after-sales guarantee: We arrange reshipment or supplementary documents immediately if clients receive damaged packages or missing batch test documents. Continuous technical consultation support is provided for long-term cooperative partners.
Product Overview
Our factory is a professional manufacturer with more than 10 years of experience in synthetic raw material R&D, production and global export. We complete all production procedures in-house including chemical synthesis, recrystallization purification, aseptic sieving and vacuum packaging without outsourcing links, with full independent quality control throughout the whole process.
Melatonin is a widely used synthetic raw material for laboratory research, manufactured by refined chemical synthesis route with accurately controlled reaction parameters to minimize by-product impurities. Crude material undergoes three-stage purification: recrystallization, desalination filtration and gradient reversed-phase chromatography, to fully separate residual intermediates, heavy metals, micro organic solvents and isomer impurities. The finished product is uniform fine white crystalline powder with excellent solubility, forming clear solution without sediment. Its physical and chemical properties remain stable during long-distance sea transportation under variable temperature and humidity, free from caking, discoloration or purity decline, perfectly suitable for in-vitro scientific experiments of overseas universities, biological R&D enterprises and third-party testing institutions.
United States
Pakistan
United Kingdom
Netherlands
Lebanon
Germany
Uzbekistan
India
Greece
Egypt
Thailand
South Korea
