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Bromocresol purple
指示剂 Ind
  • Brand
    Codow
  • Product No.
    CD100900
  • CAS No.
    115-40-2
  • Standard
    Q/HWC032-2020
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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. : CD100900

  • Product Name : Bromocresol purple

  • Product Spec. : 指示剂 Ind

  • CAS号 : 115-40-2

  • 分子式 : C21H16Br2O5S

  • 分子量 : 540.22

  • 贝尔斯坦(Beilstein)注册号 : 359618

  • 酶学委员会编号 : 204-087-8

  • MDL编号 : MFCD00011681

  • pH 变色域 Transition range : 5.2(黄)Yellow~6.8(紫)Purple

  • 干燥失重 Loss on drying : ≤0.5%

  • 灼烧残渣 ( 以硫酸盐计 )Residue on ignition(asSO4) : ≤0.1%

  • 稀碱溶解试验 Solubility in alkali : 合格 Pass

  • 最大吸收波长λ1(pH 5.2) : 427~431

  • 最大吸收波长λ2(pH 6.8) : 588~590

  • 质量吸收系数α1(λ1,pH 5.2,干样) : 40.5~45.0

  • 质量吸收系数α2(λ2,pH 6.8,干样) : 100.0~110.0

  • 颜色外观 Color Appearance : 紫色粉末 Purple powder

  • 熔点 Melting range, ℃ : 240 ℃

  • Shelf Life : 730 Days

  • COA : Have COA

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