1,2-Diamino-4-fluorobenzene4-Fluorobenzene-1,2-diamine, tech4-Fluorophenylene-1,2-diamine3,4-Diaminofluorobenzene4-fluorobenzene-1,2-diamine4-FLUORO-o-PHENYLENEDIAMINE4-Fluoro-1,2-phenylenediamine1,2-Diamino-4-fluorobenzene4-氟-1,2-苯二胺3,4-二氨基氟苯对氟邻苯二胺4-Fluoro-o-phenylenediamineU - Chloral hydrate solution水合氯醛 溶液4-Fluorobenzene-1,2-diamine 97%对氟邻苯二胺4-Fluoro-o-phenylenediamine