... and Strong/Lasting leveling agentDEP, PABS, TC-DEP..Stronger Leveling agent PPS, PPS-OH..Auxiliary & Assistant BrightenerALS, VS, EHS,BBI.. ... Impurity ToleranceATPN , SSO3, PN, PZN, FEZX ..Brighter and leveling agent at low area lightPOPDH, PS, POPS,..Low foam wetting agentTC ... EDTP, Q75, Propargyl Chloride, Basic Chromic Sulfate, Chromiun Nitrate.... hot sell for 1,3- PS cas no. 1120-71-4.