318752

Bromothymol Blue sodium salt solution

0.04 wt. % in H₂O

• Formula empirica (notazione di Hill): C₂₇H₂₇Br₂NaO₅S
• Numero CAS: 34722-90-2
• Peso molecolare: 646.36
• Numero MDL: MFCD00077263
• Codice UNSPSC: 12171500
• ID PubChem: 24859144
• NACRES: NA.47

Proprietà

• Stato: liquid
• Livello qualitativo: 200
• Concentrazione: 0.04 wt. % in H₂O
• pH: 6.0-7.6, yellow to blue
• Densità: 0.99 g/mL at 25 °C (lit.)
• λmax: 615 nm
• ε (coefficiente d’estinzione): ≥13000 at 304-310 nm in 0.1 M NaOH at 0.005 g/L; ≥8000 at 391-397 nm in 0.1 M NaOH at 0.005 g/L
• applicazioni: diagnostic assay manufacturing; hematology; histology
• Temperatura di conservazione: room temp
• Stringa SMILE: [Na+].CC(C)c1cc(c(C)c(Br)c1O)\C(=C2/C=C(C(C)C)C(=O)C(Br)=C2C)c3ccccc3S([O-])(=O)=O
• InChI: 1S/C27H28Br2O5S.Na/c1-13(2)18-11-20(15(5)24(28)26(18)30)23(17-9-7-8-10-22(17)35(32,33)34)21-12-19(14(3)4)27(31)25(29)16(21)6;/h7-14,30H,1-6H3,(H,32,33,34);/q;+1/p-1/b23-21+;; NMKFVGALBGZKGW-FKWCIMQXSA-M

Descrizione

Descrizione generale

Bromothymol Blue is a sulfonated hydroxyquinone in acidic solutions. In alkaline solutions, it is present as a dianion that is blue with a larger conjugated system than the yellow hydroxyquinone. Both forms are lipophilic. It is also known as bromthymol blue or dibromothymolsulfonphthalein.

Applicazioni

Bromothymol blue has various applications in biology and medicine. It is suitable for demonstrating fungal hyphae within plant roots. It is used as a vital stain to trace the movement of fluids from the lymph. It is added to an agar gel microbial culture medium for enumeration of Bacillus cereus. Bromothymol blue is also used as a pH indicator due to its precise color transition properties at neutrality.

Azioni biochim/fisiol

Bromothymol Blue is a pH indicator which changes color from yellow (pH 6.0) to blue (7.6). It belongs to the class of sulfonephthalein dyes.

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 10 - Combustible liquids
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable
• Dispositivi di protezione individuale: Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)