对羟基苯甲酸甲酯

无色针状结晶或结晶性粉末。无气味或微有刺激性焦灼味。溶于醇、醚和丙酮，微溶于苯和四氯化碳，难溶于水(1g/400ml)。半数致死量(小鼠，腹腔)960mg/kg。有刺激性。
沸点：298.6℃
熔点：125-128℃

项目Item　　　　　　　　　　               分析纯　　   化学纯
                                            (AR)        (CP)
含量(C₈H₈O₃)Assay,%　　　                 ≥99.0        98.0
熔点范围Melting point,℃              125.0～128.0  124.0～127.0
灼烧残渣(以硫酸盐计)Ignition residue,%    ≤0.1          0.1
酸度Acidity                                 合格        合格
氯化物(Cl)Chloride,%                      ≤0.01        0.02
硫酸盐(SO₄)Sulfate,%                      ≤0.01        0.02


品级Grade                               昆虫细胞培养级，≥99.0%  
                                    (for insect cell culture，≥99.0%)
外观Appearance                          White to Off-White Powder
红外光谱Infrared spectrometry           Conforms to Structure
纯度Purity(GC)                          ≥99.0%    
水溶解试验solubility in water           Colorless Clear ,50 mg/mL, EtOH
昆虫细胞培养测试Insect Cell Test        Pass


≥99%, FCC：

grade                                  FCC Kosher NI
外观Appearance                         White Solid
红外光谱Infrared spectrum              Conforms to Structure
纯度Purity (GC)                        ≥99.00 %
纯度Purity by Titration by HCL         99.00 - 100.50 %
(dry basis)
熔点Melting Point                      125.0 - 128.0 °C
干燥失重Loss on Drying                 ≤ 0.5 %
灼烧残渣Residue on ignition (Ash)      ≤ 0.05 %
酸度Acidity                            Pass
重金属Heavy Metal                      ≤1.0 ppm
砷Arsenic (As)                         ≤3 ppm
镉Cadmium (Cd)                         ≤1 ppm
汞Mercury (Hg)                         ≤1 ppm
铅Lead (Pb)                            ≤1.0 ppm