Vitamin B.sub.12 derivative suitable for radiolabeling
US4209614A · kind A · utility
21Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 1978 |
| Grant date | Jun 24, 1980 |
| Priority date | — |
| Expiry date | May 30, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/82
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Radiolabeled vitamin B.sub.12 derivatives having the formula ##STR1## wherein R is hydrogen or alkyl of 1 to 3 carbon atoms; n is 0, 1, 2, 3 or 4; and the asterisk (*) indicates tagging with a radioisotope, are useful as tracers in radioassays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.