CA Patent

CA2192731C — Monohydrates of aminobenzenesulfonic acid derivatives and method for preparing thereof

Assigned to Mitsubishi Chemical Corp · Expires 2005-09-27 · 21y expired

What this patent protects

A monohydrate of an aminobenzenesulfonic acid derivative represented by the following formula (I), for example, 2-(1-piperazinyl)-5-methylbenzenesulfonic acid, which is substantially free from weight change due to moisture absorption, and can be weighed accurately in a manufactur…

USPTO Abstract

A monohydrate of an aminobenzenesulfonic acid derivative represented by the following formula (I), for example, 2-(1-piperazinyl)-5-methylbenzenesulfonic acid, which is substantially free from weight change due to moisture absorption, and can be weighed accurately in a manufacturing process of a pharmaceutical composition for the treatment of heart diseases comprising said monohydrate. (See formula I)

Drugs covered by this patent

Patent Metadata

Patent number
CA2192731C
Jurisdiction
CA
Classification
—
Expires
2005-09-27
Drug substance claim
No
Drug product claim
No
Assignee
Mitsubishi Chemical Corp
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

Track this patent

Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.