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Tel: 0086 22 27466330
Fax: 0086 22 27455635
Email: info@vsnchem.com
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Manufacturing

We are experts at API and fine chemical manufacturing. And we continued developing organic synthetic technology and manufacturing products with quality you expect. For the customer requirement, we will respond to you within 48 hours.

Manufacturing Capabilities
  • API raw materials and intermediates from gram, kilogram to metric ton 
  • Fine chemical raw materials and intermediates from gram, kilogram to metric ton
  • Registered GMP starting materials
  • Various classes of compounds 
  • Unique facility (low temperature and high pressure capabilities)
Reactor size rang Work Temperaturer Facility
5-100L -78 to 250 °C R&D and Kilo Labs
10-1000L -78 to 250 °C Pilot & Bulk production
300-3000L -78 to 250 °C Bulk production
50-2000L -78 to 25 °C Low temperature
10-1000L 25 to 250 °C Autoclave

Custom synthesis

Custom synthesis is a core business at Vesino. Our laboratory is managed and staffed by skilled chemists with a wide range of synthetic experience. Our product including aromatic/aliphatic fluorochemicals, heterocycles, organic intermediates etc. 
Our Scale-up of the process shall be from gram or kilogram up to 100’s kilograms
We continue developing many novel items to our clients in a timely and cost effective manner. 

Main reaction

Acylation,
Alkylation,
Balz-Schiemann fluorination,
Bromination,
Chlorination
Chloromethylation
Chlorosulphonation
Condensation
Cyanation
Cryogenic reactions (-78°C)
Cyclisation

Dehydration
Dehydrobromination
Diazotisation
Diels-Alder reaction
Friedel-Crafts reaction
Grignard reaction
Halex reaction
Halide exchange
Hofmann degration
Hydrobromination  Lithiation

Mannich reaction
Methylation
Michael addition
Nitration
Reductions
Stecker reaction
Sulphonation
Sulphoxidation
Thiolation
Wolf-Kishner


Main product
  • Quinolines, Benzothiophene and benzofuran etc
  • Organosulphur compounds,thiophenols,sulphonyl chlorides,sulphonamides, etc
  • Boric acid and derivate  

Contract research
We provide early stage drug discovery and development services for pharmaceutical, biotech and biomedical device industries. With the experienced chemists and facilities, we strive to meet the custom contract research requirements.
We shall work in a timely and efficient manner so that you can meet your important project deadlines. And we will also target the most precise pathway to your success.

Chemical outsource
Saving time and money, ensuring the quality are paramount for the customers. 
To sourcing chemical, our advantage:
  • Cooperating closely with the Chinese Chemical manufacturer, University laboratory, Institute of Chemistry and even full-time chemists. Help you sourcing the chemical in a timely and efficient manner. 
  • Providing the test for GC, HPLC, MS, IR,UV and NMR etc to ensure the quality as you expect with the experienced staffs and precise analysis equipment.  
  • Strict quality control system
  • Deeply understanding of Chinese market and flexible communication with Chinese suppliers. 

Marketing Agent
As the professional chemical company. Vesino engage in establishing long term cooperation with our customers and suppliers all over the world. While developing our own products, we strive to provide high quality products to our customers in China from oversea market. We shall promote your products into Chinese market quickly and effectively.  
 
Analytical services
At Vesino, our analytical research is widely used in the manufacturing and R&D like  API, novel intermediate and special research activity etc. 

The main services:
  • Analytical Method Development and Validation
  • Stability Testing
  • Spectroscopic Structure Confirmation
 
List of Equipment
  • HPLC, LC-MS,
  • GC, GC/MS
  • 300, 400 & 500MHz NMR
  • IR & UV