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105945 Sigma-Aldrich

Phenolphthalein

ACS reagent

Synonym: 3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone

  • CAS Number 77-09-8

  • Empirical Formula (Hill Notation) C20H14O4

  • Molecular Weight 318.32

  •  Colour Index Number 764

  •  Beilstein/REAXYS Number 284423

  •  EC Number 201-004-7

  •  MDL number MFCD00005913

  •  PubChem Substance ID 24846716

  •  NACRES NA.47

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Properties

Related Categories Analytical Reagents, Analytical/Chromatography, Cell Biology, Core Bioreagents, Hematology and Histology,
Quality Level   200
grade   ACS reagent
form   powder
application(s)   hematology: suitable
  histology: suitable
  titration: suitable
visual transition interval   8.0 - 10, colorless to red
mp   261-263 °C (lit.)
solubility   acetone: soluble
density   1.27 g/cm3 at 32 °C
λmax   374 nm (2nd)
  552 nm
Featured Industry   Diagnostic Assay Manufacturing
storage temp.   room temp
SMILES string   Oc1ccc(cc1)C2(OC(=O)c3ccccc23)c4ccc(O)cc4
InChI   1S/C20H14O4/c21-15-9-5-13(6-10-15)20(14-7-11-16(22)12-8-14)18-4-2-1-3-17(18)19(23)24-20/h1-12,21-22H
InChI key   KJFMBFZCATUALV-UHFFFAOYSA-N

Description

Application

Phenolphthalein is used as a general pH indicator. It is colorless in acidic solutions and turns pink in basic solutions. Phenolphthalein is also used as a model organic compound in the evaluation of the capture efficiency of various cyclodextrin constructs such as nanofiber-CD.

Packaging

100, 500 g in poly bottle

2.5 kg in poly drum

Safety & Documentation

Safety Information

Symbol 
GHS08  GHS08
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3
RTECS 
SM8380000

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Titrette from Brand

Single- & multi-channel pipettes from BRAND
Protocols & Articles

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Peer-Reviewed Papers
15

References

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