EP Patent

EP3559121A1 — Novel process for the preparation of indigotindisulfonate sodium (indigo carmine)

Assigned to Provepharm Life Solutions SA · Expires 2019-10-30 · 7y expired

What this patent protects

This invention relates to an improved method for the preparation of highly or substantially pure Indigotindisulfonate sodium (1). It further relates to the novel crystalline form I of Indigotindisulfonate sodium (1) and the process for its preparation.

USPTO Abstract

This invention relates to an improved method for the preparation of highly or substantially pure Indigotindisulfonate sodium (1). It further relates to the novel crystalline form I of Indigotindisulfonate sodium (1) and the process for its preparation.

Drugs covered by this patent

indigotindisulfonate-sodium (INDIGOTINDISULFONATE SODIUM)

Patent Metadata

Patent number: EP3559121A1
Jurisdiction: EP
Classification: —
Expires: 2019-10-30
Drug substance claim: No
Drug product claim: No
Assignee: Provepharm Life Solutions SA
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.

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