1. USP General Chapter <467> Residual Solvents, USP41-NF36 2S, Official March 01, 2019.
2. Impurities: Guideline for Residual Solvents Q3C(R6);ICH Guideline,2016
3. Supplement I to Japanese Pharmacopoeia (JP) 2.46 Residual Solvents,2017
4. ICH Guideline Q3C (R6) on Impurities – Support Document 1: Toxicological Data for Class 1 Solvents Step 5,2018