Are there any companies in Shanghai that are agents for butene and dimethyl ether?

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This post was last edited by jordan569 on 2013-1-6 21:58. Experiments require the use of dimethyl ether, butene, C5, C6 and other raw materials, but firstly, they are rarely used in the laboratory. Secondly, these things are relatively dangerous and should not be stored in large quantities. Generally, we buy dozens of kilograms, but those sold outside sell by the ton and in tank trucks. It’s hard to buy products in small quantities like ours. The agent we find is dozens of times more expensive, and they are out of town. The transportation fee for one round trip costs several thousand yuan. There are still some * * The company will shut down after receiving the money. I would like to ask if there are any agents in Shanghai who sell this product? Something more reliable. For example, if you sell it to a large chemical factory in Shanghai and fill a few cylinders for us, it doesn't matter if the price is a little higher, as long as it's not too outrageous. Hope you can help me a lot! .Note$#, $ $