Method DM 471 Standard Mixture 5 - 7 components: 100ug/ml each of Aniline [CAS:62-53-3] ; Diphenylamine [CAS:122-39-4] ; o-Toluidine [CAS:95-53-4] ; o-Anisidine [CAS:90-04-0] ; 3-Anisidine (m-Anisidine) [CAS:536-90-3] ; 4-Anisidine (p-Anisidine) [CAS:104-94-9] ; p-Toluidine [CAS:106-49-0] in Methanol