Chemical name: Benzenepropanoic acid,3,5-bis(1,1-dimethylethyl)-4-hydroxy-,C7-C9 branched alkyl esters CAS No.:125643-61-0 Molecular formular: C25H42O3 Molecular weight:390 Appearance: Colorless or light yellowish liquid Purity,%:98min. Solubility: Clear Color :100max. ANTIOXIDANT HONOX-1135 is an excellent antioxidant which may be used in variety of polymers. It is highly effective for the stabilization of polyurethane including spray and RIM applications, flexible and rigid foam, and TPU. It prevents the formation of peroxides in the polyol during storage, transport, and further protects against scorching during foaming.