Organic Chemistry, Green Solvent, Organic Intermediate manufacturer / supplier in China, offering Technical Grade Electronic Grade N-Methyl Pyrrolidone NMP 99% Solvent CAS 872-50-4, Good Quality Chemical Liquid Thf 99.9% Tetrahydrofuran/Tetrahydro-Furan/Oxolane with CAS 109-99-9, High Quality China Indsutrial Grade Heptane 99%Min N-Heptane CAS 142-82-5 N Heptane and so on.