Crystal of cyclic phosphonic acid sodium salt and method for manufacturing same

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United States of America Patent

PATENT NO 9908909
SERIAL NO

15501525

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Abstract

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An object of the present invention is to provide a crystal of a cyclic phosphonic acid sodium salt (2ccPA) with high purity and excellent storage stability and a method for producing the crystal. The present invention provides a crystal of a cyclic phosphonic acid sodium salt (2ccPA) represented by formula (1):

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Patent Owner(s)

  • OTSUKA CHEMICAL CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Okazaki, Hiroki Tokushima, JP 18 83
Yuasa, Hiroaki Tokushima, JP 66 280

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