Bromocresol Green sodium salt
SIAL/114367 - 90% (HPLC), ACS reagent, Dye content 90 %
Synonym: 3′,3″,5′,5″-Tetrabromo-m-cresolsulfonphthalein sodium salt
CAS Number: 62625-32-5
Empirical Formula (Hill Notation): C21H13Br4NaO5S
Molecular Weight: 720.00
EC Number: 263-657-4
MDL Number: MFCD00148898
Linear Formula: C21H13Br4NaO5S
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: 114367-25G
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: 114367-5G
| agency | suitable for SM 2310 |
| suitable for SM 2320 | |
| application(s) | diagnostic assay manufacturing hematology histology |
| assay | 90% (HPLC) |
| composition | Dye content, 90% |
| form | powder or crystals |
| grade | ACS reagent |
| InChI | 1S/C21H14Br4O5S.Na/c1-9-1 |
| InChI key | HEFSGAHJDGZCHA-UHFFFAOYSA |
| mp | 230 °C (dec.) (lit.) |
| Quality Level | 200  |
| SMILES string | [Na+].Cc1c(Br)c(O)c(Br)cc |
| storage temp. | room temp |
| visual transition interval | 3.8, yellow(Visual Interval Pass) |
| 3.8-5.2, yellow to blue | |
| 4.5, green | |
| 5.4, blue(Visual Interval Pass) |
| 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 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. • 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 suitable as a selective inhibitor in kidney physiology studies. |
| General description: | Bromocresol Green (BCG), also known as bromcresol green, is a synthetic, anionic, triphenylmethane dye belonging to the phthalein and sulphonphthalein dyes group. It is commonly used as a pH indicator as it changes color from yellow to blue-green at pH 3.8-5.4. The monosodium salt of bromocresol green is highly ionizable in water. The dye at a higher pH level produces a large and weakly lipophilic dianion. |
| 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 | 90% (HPLC) |
| mp | 230 °C (dec.) (lit.) |
| Storage Temp. | room temp |
| UNSPSC | 12171500 |