This product can be used for titration analysis, qualitative and quantitative analysis, etc. It should be stored in a cool, ventilated place, sealed, and used within its expiration date. To obtain the product's Certificate of Analysis (COA), please visit www.howeipharm.com to view and download it.
Standard : Q/HWC032-2020 广州和为医药科技有限公司化学品制造标准
Product No. : CD101312
Product Name : Phenolphthalein
Product Spec. : 指示剂 Ind
Packges : 100mg 1g 10g 100g 500g
CAS号 : 77-09-8
分子式 : C20H14O4
分子量 : 318.32
色标 : 764
贝尔斯坦(Beilstein)注册号 : 284423
酶学委员会编号 : 201-004-7
MDL编号 : MFCD00005913
颜色外观 Color Appearance : 白色或微黄色结晶性粉末 White or yellowish crystalline powder
pH 变色域 Transition range : 8.0 无色 Colorless～10.0 红紫 Mangenta
质量吸收系数 Spec. absorptivity α(L/cm.g) : 68-75
乙醇溶解试验 Solubility test in ethanol : 合格 Pass
干燥失重 Loss on drying : ≤1.0％
灼烧残渣（以硫酸盐计）Residue on ignition(as SO4) : ≤0.05％
熔点 Melting point : 258-263 °C
Shelf Life ： 730 Days
COA ： Have COA
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