Bromocresol Green
SIAL/114359 - ACS reagent, Dye content 95 %
Synonym: BCG; 2,6-
CAS Number: 76-60-8
Empirical Formula (Hill Notation): C21H14Br4O5S
Molecular Weight: 698.01
EC Number: 200-972-8
MDL Number: MFCD00005874
Linear Formula: C21H14Br4O5S
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: 114359-25G
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: 114359-5G
| λmax | 423 nm |
| application(s) | diagnostic assay manufacturing hematology histology |
| assay | ≥95% (After Oxygen Combustion, silver nitrate titration) |
| composition | Dye content, 95% |
| form | powder |
| grade | ACS reagent |
| InChI | 1S/C21H14Br4O5S/c1-9-12(7 |
| InChI key | FRPHFZCDPYBUAU-UHFFFAOYSA |
| mp | 225 °C (dec.) (lit.) |
| Quality Level | 200  |
| SMILES string | Cc1c(Br)c(O)c(Br)cc1C2(OS |
| storage temp. | room temp |
| visual transition interval | 3.8, yellow(passes test) |
| 3.8-5.4, yellow to blue(passes test) | |
| 4.5, green | |
| 5.4, blue |
| Application: | Bromocresol green serves as a pH indicator in biology and medicinal experiments.• It is used widely as a vital stain to study blood-brain permeability. • It has been used in the pH-sensitive colorimetric determination of glutamate decarboxylase activity. • It has also been employed in the evaluation of paper-analytical devices for colorimetric analysis of serum samples. • It is used as a tracking dye for DNA agarose gel electrophoresis, in protein determinations, and in charge-transfer complexation processes. • It is used in TLC for the visualization of compounds with functional groups whose pKa is below 5.0. |
| General description: | Bromocresol Green is a synthetic triphenylmethane dye that is anionic in nature. At pH 3.8-5.4, it changes color from yellow to blue-green, and is therefore, commonly used as a pH indicator. |
| Packaging: | 5, 25 g in glass bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥95% (After Oxygen Combustion, silver nitrate titration) |
| mp | 225 °C (dec.) (lit.) |
| Storage Temp. | room temp |
| UNSPSC | 12171500 |