Rubber antioxidant 4010na (ippd) Chemical namen-isopropyl-n¹-phenyl-p-phenylene-diamine Molecular formulac15h18n2 Synonyms: ippd Molecular weight 226.4 Cas no: 101724 ; Einecs no. 2029697 Standardgb8828--88: Specification: Assay value: 95%min Appearance: purple-brown granule Melting point: 70f¦ min Heating loss: 0.5% max Ash content: 0.3% max Packed in kraft paper 25kg per bag lined with pp woven bag with plastic bag inside and storage in cool and dry conditions.