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We, KAWASAKI KASEI CHEMICALS LTD., have been studying and synthesizing various derivatives of naphthoquinone, anthraquinone, naphthalene and anthracene for several decades. We are the largest manufacturer of naphthoquinone in the world, and supplying our products to customers all over the world.
We have experienced joint works with many companies of various fields and have experiences of study to synthesize more than 900 derivatives. We are making efforts to develop new technology and new products. And we awarded the prize of the Society of Synthetic Organic Chemistry. in Japan (2000), for manufacturing technology for the agricultural chemical ingredient that is naphthoquinone derivative.
We are the pioneer of the world of quinones.
Please contact us when you intend to step in this field.
Of course, we are ready to supply our commercial products and respond to custom manufacturing.
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| Applications, physical properties and features of quinones |
| Derivatives of naphthoquinone and anthraquinone have various biochemical characteristics (bioactivities) and have the wide application for medicines, pesticides, etc. And derivatives of naphthalene and anthracene as electronic materials, by utilizing its response to light. |
"Biochemical charactesristics"
antibacterial action, antitumor action, electron transport inhibition in the sulfate-reducing bacteria, electron transfer material in the photosynthesis, ultraviolet ray absorption, skin darkening-inhibitory effect
"Physiochemical characteristics"
optical absorption, photosensitizative action, oxidoreduction (oxidation-reduction, redox), reduction of precious metals, photoconductivity, photochromic,
photosensitization electron transfer, fluorescence, phosphorescence, electrical conduction property, electrochromic, electron acceptor |
"Applications in medicine and pesticide fields"
incecticide, miticide, antibacterial agent, herbicide, fungicide, disinfectant, antimalarial, hair dye, hydrogen sulfide generation inhibition, vitamin K, antibiotics, insecticide, henna, hemostatic, antiprotozoal agent, anti-virus medicine, antiinflammatory agent, antiallergic agent, anti-asthma medicine, anti-rheumatic drug, bronchodilator
"Applications in information and electronic material fields"
photo sensitizer, photo cation polymerization stereo lithography, printing, adhesive for DVD, printing ink for the flexo, beverage can coat, surface coating for car components, photoresponse polymer, painting, resist, antireflection film, release paper, optical device, organic semiconductor, organic electroluminescence (EL) device, thermo-sensitive paper sensitizer, optical lens, dental material, plastic molding, optical disk, UV curing(hardening) material, liquid crystal, solar cell, display.
"Other applications"
desulphurization catalyst, cooking agent(digesting assistant), precious metal recovery, catalyst for the hydrogen peroxide manufacturing, photograph sensitizer, dyestuff, additive for polymer, oxygen absorption polymer, polymerization inhibitor |
| 3.Examples of derivatives |
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Naphthoquinone
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| Naphthoquinonesulfonic acid |
| 2-Hydroxy-1,4-naphthoquinone |
| 2,3-Epoxy-1,4-naphthoquinone |
| 2-Chloro-1,4-naphthoquinone |
| 2,3-Dichloro-1,4-naphthoquinone |
| 2-Amino-1,4-naphthoquinone |
| 2-Amino-3-chloro-1,4-naphthoquinone |
| 2,3-Dicyano-1,4-dithi0-9,10-anthraquinone |
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Naphthalene
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| 1,4-Dimethoxynaphthalene |
| 1,4-Diethoxynaphthalene |
| 1,4-Dibutoxynaphthalene |
| 4-Ethoxy-1-naphthol |
| 1-Methoxy-4-ethoxynaphthalene |
| Ethoxy-4-phenoxyethoxy naphthalene |
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Anthracen
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| 9,10-Diethoxyanthracene |
| 9,10-Dipropoxyanthracene |
| 9,10-Dibutoxyanthracene |
| 9,10-Diamyloxynthracene |
| 9,10-Dioctyloxyanthracene |
| 9,10-Dialkoxyanthracene |
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Anthrone
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| 9-Methoxyanthracene |
| 9-Ethoxyanthracene |
| 9-Propoxyanthracene |
| 9-Butoxyanthracene |
| 9-Acryloxyanthracene |
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Anthraquinone
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| 1,4-Dihydro-9,10-anthraquinone |
| Tetrahydroanthraquinone |
| Alkylanthraquinone |
| 2-Pentenylanthraquinone |
| 2-Pentylanthraquinone |
| 2-Phenoxyanthraquinone |
| 2-(2-Hydroxyethoxy)anthraquinone |
| Ethyl anthraquinonecarboxylate |
| Glycidyl anthraquinonecarboxylate |
| Chloroanthraquinone |
| Anthraquinonesulphonic acid |
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