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. : CD100901
Product Name : Bromocresol green
Product Spec. : 指示剂 Ind
Packges : 100mg 1g 10g 25g 100g 500g
CAS号 : 76-60-8
分子式 : C21H14Br4O5S
分子量 : 698.01
贝尔斯坦(Beilstein)注册号 : 372527
酶学委员会编号 : 200-661-7
MDL编号 : MFCD00005874
颜色外观 Color Appearance : 淡黄色或棕色粉末 Light yellow or brown powder
pH 变色域 Transition range : 3.8(黄绿) Yellow-green～5.4(蓝)Blue
最大吸收波长，Absorption maximum λ max, nm : －
α1(λ，pH4.5，干样 dry sample) : 440～445
α2(λ，pH6.2，干样 dry sample) : 615～618
质量吸收系数 Spec. Absorptivity α(L/cm·g) : －
α1(λ1，pH4.5，干样 dry sample) : 24～28
α2(λ2，pH6.2，干样 dry sample) : 53～58
乙醇溶解试验 Solubility in ethanol : 合格 Pass
干燥失重 Loss on drying : ≤3.0%
灼烧残渣 ( 以硫酸盐计 )Residue on ignition(asSO4) : ≤0.25%
熔点 Melting range, ℃ : 225 ℃
Shelf Life ： 730 Days
COA ： Have COA
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