Invention Grant
- Patent Title: Crystal of cyclic phosphonic acid sodium salt and method for manufacturing same
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Application No.: US16878109Application Date: 2020-05-19
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Publication No.: US10941169B2Publication Date: 2021-03-09
- Inventor: Hiroaki Yuasa , Hiroki Okazaki
- Applicant: OTSUKA CHEMICAL CO., LTD.
- Applicant Address: JP Osaka
- Assignee: OTSUKA CHEMICAL CO., LTD.
- Current Assignee: OTSUKA CHEMICAL CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Kratz, Quintos & Hanson, LLP
- Priority: JPJP2014-164423 20140812
- Main IPC: C07F9/6571
- IPC: C07F9/6571 ; A61P19/00 ; A61P29/00 ; A61P35/00 ; C07F9/6574 ; A61K31/665
Abstract:
An object of the present invention is to provide 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
- US20200277318A1 CRYSTAL OF CYCLIC PHOSPHONIC ACID SODIUM SALT AND METHOD FOR MANUFACTURING SAME Public/Granted day:2020-09-03
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