Phenolphthalein is a chemical compound with the formula C20H14O4 and is often written as “HIn” or “phph” in shorthand notation. Phenolphthalein is often used as an indicator in acid–base titrations
| Phenolphthalein, GR - Specification | |
| Synonyms | 3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone |
| Grade | AR / GR |
| Categories | Hematology & histology |
| Appearance (Form) | Powder |
| Appearance (Colour) | White |
| Melting point | 261-263 °C(lit.) |
| Solubility | Acetone: soluble |
| HSN Code | 382200.90 |