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Dive into the research topics where Tomotoshi Okaichi is active.

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Featured researches published by Tomotoshi Okaichi.


Agricultural and biological chemistry | 1962

The structure of nereistoxin.

Tomotoshi Okaichi; Yoshiro Hashimoto

When treated with Raney nickel, S-bisbenzoyl derivative of dihydronereistoxin gave N,N-dimethylisopropylamine together with dimethylamine. Supported by other evidences, especially on the presence of 1,2-dithiolane ring, this led us to postulate that nereistoxin is 4-N,N-dimethylamino-1,2-dithiolane. The structure was also unequivocally supported by the NMR spectrum. Some additional data on chemical property of nereistoxin and its derivatives were described in succession to the previous paper.


Agricultural and biological chemistry | 1962

Polarographic Studies on Fat-soluble Vitamins in Nonaqueous Media

Tomotoshi Okaichi; Yoshiro Hashimoto


Nippon Suisan Gakkaishi | 1968

Glenodinine, an Ichthyotoxic Substance Produced by a Dinoflagellate, Peridinium polonicum

Yoshiro Hashimoto; Tomotoshi Okaichi; Le Dung Dang; Tamao Noguchi


Nippon Suisan Gakkaishi | 1957

On the Determination of Trimethylamine and Trimethylamine Oxide

Yoshiro Hashimoto; Tomotoshi Okaichi


Annals of the New York Academy of Sciences | 2006

SOME CHEMICAL PROPERTIES OF NEREISTOXIN

Yoshiro Hashimoto; Tomotoshi Okaichi


Nippon Suisan Gakkaishi | 1966

MUSCLE DYSTROPHY OF CARP DUE TO OXIDIZED OIL AND THE PREVENTIVE EFFECT OF VITAMIN E

Yoshiro Hashimoto; Tomotoshi Okaichi; Takeshi Watanabe; Atushi Furukawa; Takeshi Umezu


Nippon Suisan Gakkaishi | 1978

Identification of Paralytic Shellfish Toxins in Shellfish from Inland Sea

Yasukatsu Oshima; Yuzuru Shimizu; Sachio Nishio; Tomotoshi Okaichi


Nippon Suisan Gakkaishi | 1958

Trimethylamine Oxide in Fish Muscle II

Yoshiro Hashimoto; Tomotoshi Okaichi


Nippon Suisan Gakkaishi | 1974

Significance of Amino Acid Composition of Phytoplankton and Suspensoid in Marine Biological Production

Tomotoshi Okaichi


Nippon Suisan Gakkaishi | 1977

Paralytic Shellfish Poisoning in Eastern Seto Inland Sea

Tomotoshi Okaichi; Sachio Nishio

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