Tricyclopolyazamacrocyclophosphonic acids, complexes and derivatives thereof, for use as contrast agents
US5385893A · kind A · utility
32Cited by
7References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 6, 1993 |
| Grant date | Jan 31, 1995 |
| Priority date | — |
| Expiry date | May 6, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/281
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Tri- and tetra-cyclopolyazamacrocyclophosphonic acid compounds and their derivatives are disclosed which may form inert complexes with Gd, Mn or Fe ions. The overall charge of the complex can be varied to alter the in vivo biolocalization. The complexes are useful as contrast agents for diagnostic purposes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.