Free tool · Molgenium

The Monograph Desk

Paste your drug substance specification. The Desk reads it, works out your ICH Q3A impurity thresholds from the daily dose, checks any elemental limits against ICH Q3D, and tells you what is missing or inconsistent before a regulator finds it.

Your specification never leaves your browser. There is no upload, no account and no server: every check below is computed on your own machine from the text you paste.
What this checks, and what it does not. The Desk applies the published ICH guidelines: Q3A/Q3B impurity thresholds and Q3D elemental limits. It holds no pharmacopoeia content, so it will never tell you what Ph. Eur., USP-NF, JP or BP require — those questions go to a Molgenium expert, who works from the official texts. It supports your judgement; it does not replace it.

Your specification

Paste the specification table or certificate of analysis as plain text, one test per line, with the test name and its limit. The Desk understands formats like Assay: 99.0 - 101.0 %, Any unspecified impurity: NMT 0.10 % and Lead: NMT 0.5 ppm.

mg per day — sets your ICH thresholds
Impurities, or degradation products