Bromocresol Purple
SIAL/114375 - BioReagent, suitable for indicator, Dye content 90 %
Synonym: 5,5′-Dibromo-o-cresolsulfonphthalein; Bromcresol purple sultone form
CAS Number: 115-40-2
Empirical Formula (Hill Notation): C21H16Br2O5S
Molecular Weight: 540.22
EC Number: 204-087-8
MDL Number: MFCD00011681
Linear Formula: C21H16Br2O5S
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 114375-25G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 114375-5G
| ε (extinction coefficient) | ≥22000 at 418-424 nm in methanol |
| λmax | 419 nm |
| application(s) | diagnostic assay manufacturing hematology histology |
| assay | ≥89.0% (HPLC) |
| composition | Dye content, 90% |
| form | powder |
| InChI | 1S/C21H16Br2O5S/c1-11-7-1 |
| InChI key | ABIUHPWEYMSGSR-UHFFFAOYSA |
| mp | 240 °C (dec.) (lit.) |
| pH | 5.2-6.8, yellow to purple |
| product line | BioReagent |
| Quality Level | 200  |
| SMILES string | Cc1cc(cc(Br)c1O)C2(OS(=O) |
| solubility | ethanol: 1 mg/mL |
| storage temp. | room temp |
| suitability | suitable for indicator |
| technique(s) | titration: suitable |
| visual transition interval | 5.2-6.8, yellow to blue |
| Application: | Bromocresol Purple has been used for staining of Saccharomyces cerevisiae. |
| Application: | Spectrophotometric determination of serum-albumin |
| Biochem/physiol Actions: | Bromocresol purple is a pH indicator which changes color from yellow (at low pH 5.2) to violet (above pH 6.8). It is mainly used as a fluorescent stain in yeast cells. It helps in dead cell count for cells with plasma membrane damage. Cells with proper cell membrane are not stained, while damaged cells are seen as blue-grey ghosts. |
| 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 |
| Purity | ≥89.0% (HPLC) |
| mp | 240 °C (dec.) (lit.) |
| Storage Temp. | room temp |
| UNSPSC | 12171500 |