Method for preparing stable crystals of salt of Ceftizoxime
US4390694A · kind A · utility
2Cited by
1References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 16, 1981 |
| Grant date | Jun 28, 1983 |
| Priority date | — |
| Expiry date | Jul 16, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for preparing stable crystals of a salt of Ceftizoxime which comprises mixing an aqueous solution of a salt of Ceftizoxime and isopropyl alcohol and collecting the precipitating crystals. Crystals obtained in this manner are more stable than the crystals obtained from prior art methods involving mixed solvents of water and ethanol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.