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Merck

199311

Sigma-Aldrich

Tetrabromophenol Blue

Dye content 75 %

Sinónimos:

3,3′,3″,4,5,5′,5″,6-Octabromophenolsulfonphthalein

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About This Item

Fórmula empírica (notación de Hill):
C19H6Br8O5S
Número de CAS:
Peso molecular:
985.54
Beilstein/REAXYS Number:
378438
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47

assay

≥75.0% (HPLC)

Quality Level

form

powder

composition

Dye content, 75%

mp

204 °C (dec.) (lit.)

λmax

388 nm (2nd)
605 nm

ε (extinction coefficient)

≥55000 at 606-616 nm in ethanol and water

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Oc1c(Br)cc(cc1Br)C2(OS(=O)(=O)c3c(Br)c(Br)c(Br)c(Br)c23)c4cc(Br)c(O)c(Br)c4

InChI

1S/C19H6Br8O5S/c20-7-1-5(2-8(21)16(7)28)19(6-3-9(22)17(29)10(23)4-6)11-12(24)13(25)14(26)15(27)18(11)33(30,31)32-19/h1-4,28-29H

InChI key

QPMIVFWZGPTDPN-UHFFFAOYSA-N

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Biochem/physiol Actions

Tetrabromophenol Blue (TBPB) belongs to the group of sulfonephthalein acid-base indicators. It is employed in the potentiometric titration of the halogens with Hg2(NO3)2. In addition, it has been used as a dye indicator in urine dipstick test to detect proteinuria. In this assay, with increasing concentration of urinary protein, TBPB sequentially changes color from pale green to blue. Binding of TBPB to proteins is dependent on pH.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Sensors (Basel, Switzerland), 20(21) (2020-10-30)
A pH colorimetric sensor array was prepared and characterized by combining tetrabromophenol blue (TBB) and bromothymol blue (BB) embedded in organically modified silicate (OrMoSil) spots polyvinylidene fluoride (PVDF)-supported. The signal was based on the Hue profile (H). The individual calibrations

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