... , SOLUBLE IN ALCOHOL; INSOLUBLE IN ETHER AND BENZENEUSP REFERENCE STANDARDSUSP TETRACAINE HYDROCHLORIDE RS USP ENDOTOXIN RSCHROMATOGRAPHIC PURITYCONFORMSOTHER REQUIREMENTSCONFORMSACIDITYCONFORMWATER≤2.0%RESIDUE ... and other countries. We can also supply USP 31 GRADE TETRACAINE BASE.