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Qingdao Junniang Chemical Co., Ltd. is a China-based chemical sourcing, custom-manufacturing and export-service company specializing in research peptides, pharmaceutical research intermediates and fine chemicals.
Backed by an experienced technical team and a reliable network of qualified manufacturing partners, we provide high-purity research materials, flexible sample and bulk-order solutions, custom synthesis, quality documentation and one-stop international logistics support.
Strategically located in Qingdao, one of China’s leading port cities, we serve research institutions, laboratories, pharmaceutical R&D companies, industrial manufacturers and trading partners across Europe, North America, South America, the Middle East, Southeast Asia and Africa.
From sample evaluation and specification confirmation to bulk supply and customized production, we are committed to delivering reliable quality, responsive communication and efficient global fulfillment.
Our Specialized Product Fields
1. Research Peptides and Laboratory Materials
Research peptides are one of our principal product categories. We supply high-purity peptide materials and laboratory reagents for qualified research institutions, laboratories and pharmaceutical R&D projects.
Our main peptide-related products include:
GLP-1 research materials: Semaglutide, Tirzepatide, Retatrutide and Liraglutide
Growth-related research peptides: HGH Fragment 176-191, CJC-1295 series and Ipamorelin
Tissue-repair research peptides: BPC-157 and TB-500
Longevity and metabolic research materials: Epitalon, 5-Amino-1MQ and NAD?
Other peptide materials and customized peptide sequences upon request
We can provide raw peptide powders, research samples and selected lyophilized formats according to customers’ project requirements.
Our service capabilities include:
High-purity research-grade materials
Samples available for quality evaluation
Flexible quantities from research samples to bulk orders
COA and available analytical documentation
Custom peptide synthesis for selected sequences
Packaging and specification customization
International export and logistics coordination
All peptide products are supplied strictly for research use only and are not intended for human consumption, clinical use or therapeutic application. Product availability and shipment are subject to applicable laws and regulations in the destination country.
2. Pharmaceutical Research Intermediates and Fine Chemicals
We provide selected pharmaceutical research intermediates, organic-synthesis materials and specialty fine chemicals for laboratory research, process development and new-material applications.
Supported by our technical team and qualified manufacturing partners, we assist customers with product selection, specification confirmation, sample evaluation and customized sourcing.
Custom synthesis and process-development support are available for selected compounds, subject to technical assessment.
3. Industrial Chemicals and Solvents
We supply industrial chemicals for chemical synthesis, coatings, adhesives, rubber and plastics, water treatment and general manufacturing.
Our key products include benzene, toluene, xylene, n-hexane, n-pentane, isooctane, methanol, anhydrous ethanol, isopropanol, n-butanol, phenol, ethyl acetate, n-butyl acetate, dimethyl carbonate and sodium hydroxide.
For selected products, we support bulk supply, flexible packaging, specification matching and international shipping arrangements.
4. Polymer Additives and Petroleum-Derived Products
We supply polymerization initiators and selected petroleum-derived products for polymer synthesis, construction materials and energy-processing applications.
Representative products include AIBN (azobisisobutyronitrile), naphtha, liquefied petroleum gas, asphalt, naphthalene and anthracene oil.
We supply polymerization initiators and selected petroleum-derived products for polymer synthesis, construction materials and energy-processing applications.
Representative products include AIBN (azobisisobutyronitrile), naphtha, liquefied petroleum gas, asphalt, naphthalene and anthracene oil.
We provide specification confirmation, batch documentation, packaging support and export logistics coordination.
Quality Assurance and Documentation
Quality and consistency are essential for every research project. Products are inspected according to agreed specifications through our quality-control team, qualified manufacturing partners or accredited third-party laboratories.
Depending on the product and customer’s requirements, we can provide:
COA (Certificate of Analysis)
SDS/MSDS
TDS and product specifications
Available purity and analytical test reports
Export and customs-clearance documents
Third-party testing upon request
Why Choose Qingdao Junniang Chemical?
Specialized supply of research peptides and pharmaceutical research intermediates
High-purity materials with quality documentation
Samples available before bulk orders
Flexible quantities and packaging options
Custom synthesis for selected peptides and specialty compounds
Stable supply network supported by qualified manufacturing partners
Responsive technical and commercial communication
One-stop international export and logistics support
Whether you need a small research sample, regular bulk supply or a customized peptide sequence, Qingdao Junniang Chemical is ready to provide a reliable and efficient sourcing solution.
We look forward to becoming your long-term chemical research-material partner in China.

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