UV SPECTROSCOPY PT Trade Name: SIAL Proficiency Testing Material Proficiency Testing Material PEP017 VALERYL-L-CARNITINE Trade Name: SIAL Formula: C12H23NO4 analytical standard analytical standard 4265 VANILLIN Trade Name: SAJ Formula: C8H8O3 JIS special grade, ≥98.0% JIS special grade, ≥98.0% 33-0249 |