Method for obtaining estrogens from pregnant mare urine by solid-phase extraction

US5814624A · kind A · utility

Assignee

• Solvay Deutschland GmbH · DE

Inventors

• Ivan Ban · Hannover, DE
• Friederich Borchers · Laatzen, DE
• Henning Heinemann · Hannover, DE
• Heinz-Helmer Rasche · Burgdorf, DE

Key dates

• Filing date: Sep 18, 1997
• Grant date: Sep 29, 1998
• Expiry date: Sep 18, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07J1/0051
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A method for obtaining an extract from urine of pregnant mares containing a natural mixture of conjugated estrogens by solid-phase extraction of the mixture of conjugated estrogens from the urine of pregnant mares on RP silica gel.