4-Chloro-2-(trifluoroacetyl)aniline hydrochloride hydrate 4-氯-2-(三氟乙酰基)苯胺 一盐酸盐一水合物 1184936-21-7 4-bromo-N-Methylbenzamide N-甲基-4-溴苯甲酰胺 27466-83-7 4-BROMO-P-TERPHENYL 4-溴对三联苯 1762-84-1 4-Chloro-1H-pyrrolo[2,3-b]pyridine-3-carbonitrile 4-氯-1H-...