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N-Methyl-2- Pyrrolidone (NMP) CAS No. 872-50-4 M-Pyrol (R) (99.5%, 99.8, 99.9), Find Details and Price about 1-Methyl-2-Pyrrolidinone M-Pyrol (R) from N-Methyl-2- Pyrrolidone (NMP) CAS No. 872-50-4 M-Pyrol (R) (99.5%, 99.8, 99.9) - Hebei Anbing Biotechnology Co., Ltd