cas no:129808-00-0
Chemical name: 4,4'-(Ethyne-1,2-diyl)diphthalic Anhydride Cas no: 129808-00-0 Purity: 98%
Chemical name: 4,4'-(Ethyne-1,2-diyl)diphthalic AnhydrideCas no: 129808-00-0Purity: 98%Formula:C18H6O6Appearance: 灰白色粉末Package 铝箔袋；桶；按照客户要求
