Linear or cyclic aminophosphonates as pH markers in phosphorus 31 NMR spectroscopy
US6528656B1 · kind B1 · utility
1Cited by
3References
28Claims
0Family size
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Key dates
| Filing date | Nov 16, 2000 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Nov 16, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/05
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Linear or cyclic aminophosphonates are disclosed which are useful as pH markers. A method of using the linear or cyclic aminophosphonates in phosphorus-31 NMR spectroscopy is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.