March 27th 2025
In the latest of a series of warning letters to India-based API manufacturers, FDA issued a warning letter to Aspen for deviations in CGMP in the production of APIs.
February 25th 2025
Testing for Water in DMSO: Exploring Alternatives to Volumetric Karl Fischer Analysis
May 2nd 2019In Karl Fischer analysis, sulfur trioxide can react with DMSO, invalidating test results. The authors evaluated different instruments and methods, described in this article, to minimize the impact on results.
Spectroscopy Facilitates Lean Analysis
February 2nd 2019Spectroscopic-based control methods were introduced as equivalent alternative methods, first to a gas chromatographic method to monitor an in-process solvent exchange step and second to a potentiometric titration method to release a process input material for drug substance manufacturing.