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Yoneyama Yakuhin Kogyo Co., Ltd has been engaged in the manufacturing of
amino acids and related materials since 1917.
One of our major products, L-Leucine, which we have been producing since
1960 as a raw material for pharmaceuticals, has been supplied and appreciated
by manufacturers of Parenteral Amino Acid Solution throughout the world.
During this period, we have been developing and accumulating technologies
of "Refinement" and "Resolution".
In recent years, an optical resolution, one of our most focused technologies,
has become indispensable to core structures of chiral material for pharmaceutical
and agrochemical intermediates, as the chemical industry has been more
and more advanced. Our products have been fully reputed for the maintained
high-quality.
What distinguishes us is the wide range of production capabilities for L & D (non-natural), DL Amino acids and related products of the highest quality. Also, we are ready to respond to the requirements of BSE/TSE matters. Following product list shows main products of our strength, which are available in stock. For the products not listed, please feel free to contact us. We are ready and willing to satisfy any of your requirements for amino acid business. |
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