Crystal form and salt of 3-(3,5-dichloro-4-hydroxybenzoyl)-1,1-dioxo-2,3-dihydro-1,3-benzothiazole
US10752601B2 · kind B2 · utility
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Key dates
| Filing date | Apr 27, 2018 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Apr 27, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/13
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A type II crystal of 3-(3,5-dichloro-4-hydroxybenzoyl)-1,1-dioxo-2,3-dihydro-1,3-benzothiazole, having characteristic peaks at least around 15.1, 18.1, 22.8, 23.7, and 24.0 degrees in a diffraction angle (2θ) by X-ray powder diffraction, and method for producing said type II crystal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.