Crystal of amino acid salt of 3-hydroxyisovaleric acid and production method thereof
US11098007B2 · kind B2 · utility
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5References
20Claims
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Key dates
| Filing date | Jun 23, 2017 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | Jun 23, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/13
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An object of the present invention is to provide a crystal of an amino acid salt of HMB which is easy to handle and has high solubility, and to provide a method for producing the same. According to the present invention, the crystal of an amino acid salt of HMB can be precipitated by dissolving an amorphous amino acid salt of HMB in a solvent containing alcohol and stirring or allowing the solvent to left stand. In addition, the crystal of an amino acid salt of HMB can be precipitated by concentrating an aqueous HMB solution of an amino acid salt which has a pH of 2.5 to 11.0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.