Stable salts of 5,10-methylenetetrahydrofolic acid
US5300505A · kind A · utility
10Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1992 |
| Grant date | Apr 5, 1994 |
| Priority date | — |
| Expiry date | Oct 15, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D475/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Salts of 5,10-methylene-(6R)-, (6R,S)-, and (6S)-tetrahydrofolic acid with sulfuric acid or a sulfonic acid are stable in solid form and can be used as a constituent and/or as a starting material for the production of pharmaceutical compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.