Patent · US Active

Method for preparing guanidino acetic acid

US12398096B2 · kind B2 · utility

0Cited by

2References

16Claims

0Family size

Assignee

Evonik Operations GmbH · DE

Inventors

Timo Stahl · Limeshain, DE
Axel Ronneburg · Hanau, DE
Barbara Jäger · Zellhausen, DE
Philipp Roth · Baden, CH

Key dates

Filing date	Aug 19, 2021
Grant date	Aug 26, 2025
Priority date	—
Expiry date	Jun 25, 2042

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C277/02
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A method for preparing guanidino acetic acid involves reacting cyanamide and glycine in an aqueous reaction mixture in the presence of a base. The ammonia content in the reaction mixture is controlled to be below 20 g/L, and the dicyandiatrade content in the reaction mixture is kept below 5 wt.-%.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.