Piracetam 2-(2-Oxopyrrolidino)acetamide 7491-74-9
we have our own factories , shandong qingyun changxin chemical science-tech Co.,LTD .,Now It has 50000 tons of gamma butyrolactone ,50000 tons of N-methyl pyrrolidone and 10000 tons of a-pyrrolidone(a-p)combined device.Is the largest chemical entity specialized in the production and operation of gamma-butyrolactone(GBL),N-mrthyl pyrrolidone(NMP),a-pyrrolidone(a-p) and other series of products.
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