1. International Conference on Harmonisation of Technical Requirements for Registration of Pharmaceuticals for Human Use. ICH Harmonised Tripartite Guideline: Specifications: Test Procedures and Acceptance Criteria for New Drug Substances and New Drug Products: Chemical Substances Q6Ahttps://database.ich.org/sites/default/files/Q6A%20Guideline.pdf
2. International Conference on Harmonisation of Technical Requirements for Registration of Pharmaceuticals for Human Use. ICH Harmonised Tripartite Guideline: Impurities in New Drug Substances Q3A(R2)https://database.ich.org/sites/default/files/Q3A%28R2%29%20Guideline.pdf
3. International Conference on Harmonisation of Technical Requirements for Registration of Pharmaceuticals for Human Use. ICH Harmonised Tripartite Guideline: Validation of Analytical Procedures: Text and Methodology Q2(R1)https://database.ich.org/sites/default/files/Q2%28R1%29%20Guideline.pdf
4. Impurity investigations by phases of drug and product development
5. Pharmaceutical Stress Testing