4-溴-3-甲基苯甲酸 CAS:7697-28-1 分子式:C8H7BrO2 含量:≥98% 熔点:215-219℃ 外观:类白色或微红色结晶粉末 4-Bromo-3-Methylbenzoic acid CAS: 7697-28-1 Formula:C8H7BrO2 Specification:≥98% M.P.:215-219℃ Appearance:White or reddish crystal powder