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

Package: 225KG or according to customer requirements, can be delivered by tank truck

Uses : Used in the manufacturing of dyes and as a methylation agent for amines and alcohols

Molecular Structure:

Product description: Dimethyl sulphate, an organic compound, colorless or slightly yellow, oily flammable liquid with a slight onion odor, easily hydrolyzed into sulfuric acid and methanol at 50 ℃ or alkaline water. Slow decomposition in cold water. Combustible when exposed to heat, open flames, or oxidizing agents. Dimethyl sulfate is a reagent that can make DNA methylation. After methylation, DNA can be degraded at the methylation site.