The price quoted by Dongying Huatai Chemical Group Co., Ltd. on October 28th for p-phenylenediamine is 7500 yuan per ton. The specifications of p-phenylenediamine include a minimum purity of 99.4% as measured by the mass fraction; dry crystal point of -6.6°C or higher; and moisture content of less than or equal to 0.1%. This price is valid for a period of three days. The quote is provided by Shandong Junfeng New Materials Co., Ltd.