... acetyl-l-cysteine cas no.: 616-91-1 grade: aji92, ep5 application: one of amino acids, raw material of S-Carboxymethyl-L ... -Cysteine. used in food field, pharmaceutical field. Packaging and Storage:25kg/drum ; Preserve in ... well-closed containers, at controlled room temperature. Transport and Storage: Handle with cares to avoid damaging the package, ...