... agent PPS, PPS-OH..Auxiliary & Assistant BrightenerALS, VS, EHS,BBI..Impurity ToleranceATPN , SSO3, PN, PZN, FEZX ..Brighter and leveling agent at ... Chloride, Basic Chromic Sulfate, Chromiun Nitrate.... PA (Propargyl alcohol) chemical raw material cas no. 107- 19-7