5-Nitroguaiacol sodium salt 67233-85-6 Atonik Atonik (old) Atonik G EPA Pesticide Chemical Code 129075 Phenol, 2-methoxy-5-nitro-, sodium salt Sodium 2-methoxy-5-nitrophenolate Sodium 2-methoxy-5-nitrophenoxide Sodium 5-nitroguaiacolate