Invention Grant
- Patent Title: Crystal of cyclic phosphonic acid sodium salt and method for manufacturing same
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Application No.: US15501525Application Date: 2015-08-12
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Publication No.: US09908909B2Publication Date: 2018-03-06
- Inventor: Hiroaki Yuasa , Hiroki Okazaki
- Applicant: OTSUKA CHEMICAL CO., LTD.
- Applicant Address: JP Osaka-shi
- Assignee: OTSUKA CHEMICAL CO., LTD.
- Current Assignee: OTSUKA CHEMICAL CO., LTD.
- Current Assignee Address: JP Osaka-shi
- Agency: Kratz, Quintos & Hanson, LLP
- Priority: JP2014-164423 20140812
- International Application: PCT/JP2015/072825 WO 20150812
- International Announcement: WO2016/024605 WO 20160218
- Main IPC: C07F9/6571
- IPC: C07F9/6571
Abstract:
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):
Public/Granted literature
- US20170233421A1 CRYSTAL OF CYCLIC PHOSPHONIC ACID SODIUM SALT AND METHOD FOR MANUFACTURING SAME Public/Granted day:2017-08-17
Information query
