Bromothymol Blue sodium salt
SIGMA/18470 - for microscopy (Bot., Hist., Vit.), indicator (pH 6.0-7.6)
Synonym: Bromthymol Blue sodium salt; 3′,3′′-dibromothymolsulfonephthalein sodium salt
CAS Number: 34722-90-2
Empirical Formula (Hill Notation): C27H27Br2NaO5S
Molecular Weight: 646.36
EC Number: 252-169-7
MDL Number: MFCD00077263
Linear Formula: C27H27Br2NaO5S
Product Type: Chemical
| form | powder |
| grade | for microscopy (Bot., Hist., Vit.) |
| for molecular biology | |
| indicator (pH 6.0-7.6) | |
| InChI | 1S/C27H28Br2O5S.Na/c1-13( |
| InChI key | NMKFVGALBGZKGW-FKWCIMQXSA |
| Quality Level | 100  |
| SMILES string | [Na+].CC(C)c1cc(c(C)c(Br) |
| storage temp. | room temp |
| technique(s) | titration: suitable |
| visual transition interval | 6.0-7.6, yellow to blue |
| Application: | Suitable for use: • In preparations of pH indicator solutions • In phospholipid staining on tissues and cells prepared on microscopy slides |
| General description: | Bromothymol blue is a pH indicator for weak acids and bases. In neutral solution, it appears bluish-green. At pH above 7.6 it appears blue, and at pH below 6.0 it appears yellow. Bromothymol blue (BTB) is an anionic dye. It can be protonated or deprotonated to generate yellow or blue. BTB helps to make ion-pair complex, that is used to identify several pharmaceutical compounds with the help of extractive spectrophotometric methods. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Storage Temp. | room temp |
| UNSPSC | 12352200 |