Process for preparing EDTA-free heparins, heparin fractions and fragments
US5110918A · kind A · utility
16Cited by
2References
2Claims
0Family size
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Key dates
| Filing date | Sep 24, 1990 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | Sep 24, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P7/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Heparins, heparin fractions or fragments, optionally salified with pharmaceutically acceptable cations, having molecular weight ranging from 1.000 to 30.000 D, characterized by an EDTA content lower than 0.1%, by the absence, in the .sup.1 H--NMR spectra, of the signals due to EDTA between 2.50 and 4.00 p.p.m. and substantially free from bleeding effect and optionally free from signals, in the .sup.13 C--NMR spectrum, from 80 to 86 ppm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.