Stabilization of azulene derivatives

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United States of America Patent

PATENT NO 4533552
SERIAL NO

06473452

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Sodium 1,4-dimethylisopropylazulene-3-sulfonate is stabilized by adding to a solution thereof, physiologically non-toxic additives and then removing or separating the solvent therefrom by spray drying or a lyophilization.

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Patent Owner(s)

  • NIPPON SHINYAKU CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goshi, Hiroyuki Shiga, JP 2 23
Kawamata, Masanobu Kyoto, JP 6 52
Miyasako, Hideichi Moriyama, JP 2 23
Ushimaru, Koichi Kyoto, JP 5 88

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