cas no: 2540-99-0
Chemical name: 4,4'-Sulfonyldiphthalic dianhydride Cas no: 2540-99-0 Purity: 99%
Chemical name: 4,4'-Sulfonyldiphthalic dianhydrideCas no: 2540-99-0Purity: 99%Formula:C16H6O8SAppearance: 灰白色粉末Package 铝箔袋；桶；按照客户要求
