Azuma Co., Ltd.

Employees only

Custom Synthesis and ManufacturingBusiness

Electronic materials, organic intermediate and functional materials form the core of the custom synthesis business.
Our strength is to provide detailed support through advanced technological capabilities by our experienced and skilled staff and facilities that can respond to the customized details and scale.
From research/experiment to manufacturing aiming productization, we can respond to various needs.



Customization ranging from a few grams to several kilograms

Manufacturing and research & development (R&D) ranging from laboratory scale of a few grams to several kilograms are supported in detail and fast by our experienced technical staff


Support for product trials, data collections, etc.

By using 30L~200L glass or GL reactor/rectifying tower, we can support the making of test pieces for products developed during laboratory stage, data collection for scaling up, etc. The glass reactor has the characteristics that it is able to allow technicians to observe what is happening inside to grasp the state and color of the reaction.


Customization of product manufacturing for market expansion using verified manufacturing technologies

We can customize product manufacturing for market expansion based on the manufacturing technologies verified through small-scale manufacturing. Especially we have a line-up of 100L~2000L GL reactors that can deal with compound manufacturing of electronic materials and corrosive substance.



  • Amination
  • Acylation
  • Esterification
  • Alkylation
  • Sulfonation
  • Etherification
  • Hydroxylation
  • Cyanation
  • Halogenation
  • Hydrosilylation
  • Oxidation
  • Reduction
  • Hydrogenation
  • Polymerization
  • Low-temperature reactions
  • Friedel-Crafts
  • Diels-Alder
  • Wittig reactions
  • Grignard reactions
  • Organometallic reactions
  • Polymer synthesis
  • Silicon compound synthesis
  • Peptide synthesis

Separation & Refinement

  • Distillation
  • Superfractionation
  • Molecular distillation
  • Recrystallization
  • Extraction
  • Column chromatography refinement
  • Adsorption
  • Filtration
  • Desiccation

Overview of Analysis Equipment

Structural analysis NMR IR UV
Chromatography GC GCーMS GPC HPLC
Titrator PH Moisture (Karl Fischer) Chlorine
Physical properties
  • Viscometer (E Type, B Type, Cannon-Fenske)
  • Gravimeter (Density & specific gravity meter, hydrometer)
  • Refractometer (digital type/abbe type)
  • Color-difference meter (colorimetric method, digital type)
  • Turbidimeter (colorimetric method, digital type)
  • Electric conductivity meter