Phenol Red sodium salt
SIAL/114537 - ACS reagent, Dye content 90 %
Synonym: Phenolsulfonephthalein sodium salt
CAS Number: 34487-61-1
Empirical Formula (Hill Notation): C19H13NaO5S
Molecular Weight: 376.36
EC Number: 252-057-8
MDL Number: MFCD00066901
Linear Formula: C19H13NaO5S
Product Type: Chemical
| ε (extinction coefficient) | ≥19000 at 422-426 nm in methanol |
| ≥900 at 256-269 nm in methanol | |
| λmax | 423 nm |
| clarity of soln | passes test |
| color | red to very dark red |
| composition | Dye content, 90% |
| form | powder or crystals |
| grade | ACS reagent |
| InChI | 1S/C19H14O5S.Na/c20-15-9- |
| InChI key | HKHYOKBQJILTEI-UHFFFAOYSA |
| mp | 285 °C (dec.) (lit.) |
| Quality Level | 200 ![]() |
| SMILES string | [Na+].Oc1ccc(cc1)C2(OS(=O |
| storage temp. | room temp |
| technique(s) | titration: suitable |
| visual transition interval | 6.8-8.2, yellow to red |
| Application: | Phenol Red has been used for preparation of phosphate buffer saline (PBS)-with phenol red for microfluidic assay for simultaneous culture of multiple cell types. It has also been used for horseradish peroxidase-phenol red (HRP-PR) H2O2 (hydrogen peroxide) detection assay to identify redox cycling compounds. |
| Application: | Suitable for use as a pH indicator. |
| Biochem/physiol Actions: | Phenol Red is a pH indicator which changes color from yellow to red. |
| Packaging: | 5, 25 g in glass bottle |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| mp | 285 °C (dec.) (lit.) |
| Storage Temp. | room temp |
| UNSPSC | 12171500 |

