# US 4,393,219 A · Salt of chlorhexidine

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 4,393,219 A
- Document ID: US4393219A
- Status: Granted
- Kind: A
- Application number: 06/301,892
- Filed: 1981-09-11
- Granted: 1983-07-12
- Earliest claimed: 1981-03-30
- Assignees: Maruishi Pharmaceutical Co., Ltd.
- Inventors: Koji Inoue; Nobukatsu Sato; Takashi Tamura
- Web page: https://patentgrep.com/patent/US4393219A

## CPC

- C07D 207/28: 2-Pyrrolidone-5- carboxylic acids; Functional derivatives thereof, e.g. esters, nitriles
- A61P 31/04: Antibacterial agents
- C07C 279/265: {containing two or more biguanide groups}
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- A61P: SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS

## Abstract

There is provided the novel salt: chlorhexidine di-2-pyrrolidone-5-carboxylate which has potent antibiotic activity and is easily crystallizable.

## Claims

### Claim 1

Chlorhexidine-di-2-pyrrolidone-5-carboxylate.