Methods of synthesis and/or purification of diaminophenothiazinium compounds
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 13, 2017
Issued Date -
N/A
app pub date -
Jun 17, 2016
filing date -
Jul 11, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Loading Importance Indicators... 
Abstract
Disclosed are methods of synthesis and/or purification of certain 3,7-diamino-phenothiazin-5-ium compounds (“diaminophenothiazinium compounds”) including Methylthioninium Chloride (MTC) (Methylene Blue), and the resulting high purity characterized by a purity greater than 98%, and very low levels of heavy metals and organic impurities Azure A, B, C and MVB. Also disclosed are methods of treatment of a tauopathy or methemoglobinemia in a patient in need thereof, comprising administering to the patient a therapeutically effective amount of the high-purity diaminophenothiazinium compound.
First Claim
Other Claims data not available
Family
Loading Family data...
International Classification(s)
- 2016 Application Filing Year
- A61K Class
- 19101 Applications Filed
- 13019 Patents Issued To-Date
- 68.16 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- A61K Class
- 45.09 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Dec 13, 2024 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 13, 2028 |
