Phenolphthalein
CAS Number77-09-8
FormulaC20H14O4
Mol. Weight318.32 g/mol
Phenolphthalein
What is Phenolphthalein?
Phenolphthalein is a chemical compound with CAS number 77-09-8 and molecular formula C20H14O4. It is used in various industrial and research applications.
Applications
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.
Specifications
Molecular Weight
318.32 g/mol
Grade
ACS reagent
Assay/Purity
≥98.0%
Solubility
acetone: soluble
Colour Index Number
764
Safety Information
GHS08Signal Word
Danger
Hazard Statements
H341-H350-H361
Precautionary Statements
P201-P281-P308 + P313
Required PPE
Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
Melting Point
261-263 °C(lit.)
EC Number
201-004-7
WGK Germany
3