Crystalline choline ascorbate

US7320803B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Ludwig Völkel · Schifferstadt, DE
• Alfred Oftring · Bad Dürkheim, DE
• Oliver Hasselwander · Landau, DE
• Ulrike Sindel · Birkenfeld, DE
• Klaus Kramer · Landau, DE

Key dates

• Filing date: Feb 19, 2002
• Grant date: Jan 22, 2008
• Expiry date: Feb 19, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C215/40
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Crystalline ascorbate, in particular choline ascorbate in the form of crystals free from water of crystallization, processes for its preparation, and its used are described.