January 09 (Reuters) - The mainstream spot quotation for toluene in East China is in the range of 5,260-5,290 yuan/ton, down 10 yuan/ton from the previous trading day. The toluene and xylene markets will fluctuate weakly during the day, but the low domestic spot inventory and the wide PX-MX price difference provide strong support, limiting the short-term price decline and maintaining a volatile pattern.