Bromocresol Green sodium salt
SIAL/114367 - 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
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 | 3.8-5.2, yellow to blue |
Application: | Bromocresol Green (BCG) is used widely as a vital stain to study blood-brain permeability. Mainly, BCG serves as a pH indicator in biology and medicinal experiments. Bromocresol Green is suitable as a selective inhibitor in kidney physiology studies. BCG is used as a tracking dye for DNA agarose gel electrophoresis, in protein determinations, and in charge-transfer complexation processes. In TLC BCG is used for the visualisation of the compounds with functional groups whose pKa is below 5.0. |
General description: | Bromocresol Green (BCG), also known as Bromcresol Green, is an acidic dye and belongs to the phthalein and sulphonphthalein dyes group. The dye color changes from yellow to blue-green at pH 3.8-5.4. The monosodium salt of the dye is 4% soluble in water and 6% in ethanol. 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 |