潘金莲被吸乳揉到高潮的视频,久久99久久99精品免观看,在电影院里拨开内裤挺进,护士交换粗吟配乱大交动态图

Molecular Structure:

Product description: 2,2'-Azobis(2,4-Dimethyl)Valeronitrile(ABVN/V65) CAS No: 4419-11-8 Structural Formula: Properties: White crystal; Insoluble in water; Soluble in methanol, ethanol, toluene etc. Organic solvents. M.P. 40-70C, spontaneous firing point 220C. Decomposed at ordinary temperature and after 15 days uneffecient. Toxic, flammable and explosive solid. Storgae at below 10C and effective during six monthes. Uses: Initator for polymerization. Product specification: Assay: ≥99% Methanol solution: Almost colorless and tramsparent Fe: ≤0.002% Haolgen: ≤0.003% Hydrazo compounds: ≤0.1% Packing specification: Carton (20Kg/drum)