Phenolphthalein

• Post Date:

  Jan 15,2019

• Expiry Date:

  Jul 14,2019

• Detailed Description:

  Cas No. :77-09-8
  Phenolphthalein CAS 77-09-8 Brand: BJM
  MW:318.32 MSDS: Avaiable
  MF :C20H14O4 Sample: Avaiable
  Category: API Min order: 10grams
  Quality standard: Enterperise standard Place of Origin:China
  Usage Phenolphthalein is a chemical compound with the formula C20H14O4 and is often written as "HIn" or "phph" in shorthand notation. Often used in titrations, it turns colorless in acidic solutions and pink in basic solutions. If the concentration of indicator is particularly strong, it can appear purple. In strongly basic solutions, phenolphthalein's pink color undergoes a rather slow fading reaction and becomes colorless again. The molecule has four forms:
  Applications Pharmaceutical raw materials
  
  
  2 More information :
  
  Items
  Standards
  Results
  Characteristics
  A white or almost white powder ,practically insoluble in water ,soluble in alcohol
  Conform
  Melting temperature
  ≥260℃
  260.5℃~262.6℃
  Identification
  A Positive
  B Positive
  A Positive
  B Positive
  Appearance of solution
  The solution is clear and not more intensely coloured than reference solution Y7
  Complies
  Related substances
  Less than 0.5%
  < 0.5%
  Heavy metals
  ≤10ppm
  <10ppm
  Arsenic
  ≤8ppm
  <8ppm
  Acidity or Alkalinity
  Complies
  Complies
  Chlorides
  ≤100ppm
  <100ppm
  Sulphates
  ≤200ppm
  <200ppm
  Organic volatile impurities
  pass
  pass
  Chromatographic impurities
  ≤1.0%
  <1.0%
  Fluoran
  To pass test
  Complies
  Loss on drying
  ≤0.50%
  0.10%
  Sulphated ash (Residue on ignition)
  ≤0.10%
  0.02%
  Assay
  98.0%~101.0% (C20H14O4)
  99.8%
  Remark
  Storage condition: Well closed container, store protected from light
  Conclusion
  It comply with BP2009 and USP23

• CAS Registry Number:

  77-09-8

• Synonyms:

  ;Phenolphthalein solution;3,3-bis(p-hydroxyphenyl)phthalide;,3-bis(4-hydroxyphenyl)-1(3H)-isobenzofuranore;3,3-bis(4-hydroxyphenyl)-2-benzofuran-1(3H)-one;2-[bis(4-hydroxyphenyl)methyl]benzoic acid;Phenolphthalien;

• Molecular Formula:

  C₂₀H₁₄O₄

• Molecular Weight:

  318.3287

• Molecular Structure:

  

• Hazard Symbols:

   Xn:Harmful;
  

• Risk Codes:

  R22:;
  R40:;
  

• Safety Description:

  S36/37:;
  S45:;
  

• Company:

  Wuhan Benjamin Pharmaceutical Chemical Co.,Ltd     [ China ]          

• Contact:

  linda.wang

• Tel:

  86-27-50661279

• Fax:

  86-27-87569548

• Email:

  sales04@benjaminpharmchem.com