![Phenolphthalin [for redox indicator]](https://img.chemicalbook.com/CAS/GIF/81-90-3.gif)
A6933812
Phenolphthalin [for redox indicator] , >98.0%(HPLC)(T) , 81-90-3
CAS NO.：81-90-3
Empirical Formula: C20H16O4
Molecular Weight: 320.34
MDL number: MFCD00036135
EINECS: 201-384-4
| Pack Size | Price | Stock | Quantity |
| 25G | RMB276.80 | In Stock |
|
| 100g | RMB943.20 | In Stock |
|
| 500G | RMB3196.80 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 238 °C |
| Boiling point: | 419.24°C (rough estimate) |
| Density | 1.1863 (rough estimate) |
| refractive index | 1.5400 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | almost transparency in EtOH95vol% |
| form | powder to crystaline |
| pka | 3.96±0.36(Predicted) |
| color | White to Almost white |
| Water Solubility | 175mg/L(20 ºC) |
| Merck | 14,7244 |
| EPA Substance Registry System | Benzoic acid, 2-[bis(4-hydroxyphenyl)methyl]- (81-90-3) |
Description and Uses
Phenolphthalin is used in preparation method of polar polymer doped nanoparticles and composite wave absorbing material containing same.Dyes and metabolite
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H335 |
| Precautionary statements | P261-P301+P312-P302+P352-P304+P340-P305+P351+P338 |
| Safety Statements | 24/25 |
| WGK Germany | 3 |
| TSCA | TSCA listed |
| HS Code | 2916.39.7900 |
