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No-pressure distillation / Drying, (No-pressure/Vacuum) / Hydrogenation / Bromination / Enzymatic reaction / Peptide synthesis / Crushing ( >=1mm ) / Synthesis of chemical reagent and pharmaceutical intermediate / Optical microscope / Liquid chromatography analysis（LC） / Total organic carbon analysis(TOC) / Color difference / Hydrogen cyanide, Sodium cyanide, Potassium cyanide / Reduction, Nitro compound / Oxidation, Peroxide / Vacuum distillation / Reduction, Metalic hydride / Chlorination / Nitration / Acylation / Organic lithium / Fine Grinding ( <1000μm->=10μm ) / Inductively coupled plasma-atomic emission spectrometry / Gas chromatography analysis / Karl Fischer moisture analysis / Specific gravity / Reduction, Catalytic / Diazotization / Grignard reaction / Optical resolution / Head Space Gas Chromatography(HS/GC) / Acetalization / Hydrogeneration / Oxidization, Air / Acid chlorides / Ultraviolet-Visible spectrophotometer(UV-VIS) / Diazo-coupling reaction / Diazocoupling / Polycondensation / Suzuki-Miyaura cross coupling / Sandmeyer reaction / Infrared spectroscopy(IR) / Halogenate, Diverse halogenating agents / Mercaptan / Dehydrogenation / Reduction, High/Middle-pressure / Amination / Sulfonation / Production of pharmaceuticals/cosmetics / Particle size distribution / Halogenate, Thionyl chloride, Sulfuryl chloride etc / Oxidation, Swern / Extraction / Halogenate, NCS, NBS, NCI etc / Chlorosulfonation / Peptide synthesis / Crystallization / Alkylation / Optical rotation / Sulfonamidation / Chiral compound / Optical resolution / Aldol reaction / Wittig reaction / Wolff-Kishner-reduction / Absorption/Ion exchange / Thin layer chromatograph(TLC) / Fusing point / Recrystallization / Esterification / Potentiometric titration / Epoxidation / Filtration / Baeyer-Villiger oxidation / Metal contents reduction / Oximation / Strecker reaction / Diels-Alder / Friedel-Crafts reaction / Hofmann's Reaction / Formylation / Michael addition / Mannich reaction / Racemization / Leuckart reaction / Cyclization / Ring-Opening reaction / Dealkylation / Dehalogenation / Dehydration / Rearrangement / Acid amide / Dehydrogenation / Decarbonation /