Process for the preparation of a metastable crystal modification of n-(aminoiminomethyl)-2-aminoacetic acid (III)

US12252460B2 · kind B2 · utility

Assignee

• Alzchem Trostberg GmbH · DE

Inventors

• Thomas Güthner · Trostberg, DE
• Franz Thalhammer · Trostberg, DE
• Jürgen Sans · Trostberg, DE

Key dates

• Filing date: Jun 25, 2020
• Grant date: Mar 18, 2025
• Expiry date: Sep 24, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07B2200/13
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a novel crystal modification of N-(aminoiminomethyl)-2-aminoacetic acid, crystal mixtures, and a process for preparing said crystal modification and said crystal mixtures.