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Bleu de tétrabromophénol, Sigma-Aldrich®

Marques : SIGMA ALDRICH MICROSCOPY
Ratings: Ecrire un avis

Total Evaluation: 0
Moyenne des Notes : 0.0 sur 5

Synonyme(s): S,S-Dioxyde du 4,4'-(4,5,6,7-tétrabromo-3H-2,1-benzoxathiol-3-ylidène)bis[2,6-dibromophénol]

M-Clarity™ (Niveau de Qualité) = MQ200

199311-1G 199311-5G
199311-1GEA 48 EUR
199311-1G 199311-5G
Bleu de tétrabromophénol, Sigma-Aldrich®
Bleu de tétrabromophénol

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 colour from pale green to blue. Binding of TBPB to proteins is dependent on pH.


It is also used a diagnostic assay manufacturing, hematology, histology.

Formule: C₁₉H₆Br₈O₅S
Poids moléculaire: 985.55 g/mol
Point de fusion: 204 °C
Température de stockage: Room Temperature
Numéro MDL: MFCD00005876
Numéro CAS: 4430-25-5
EINECS: 224-622-9
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Résultats des tests de spécification

Appearance (Form) Powder or Chunks
Infrared spectrum Conforms to Structure
Wavelength 606 - 616 nm
Extinction coefficient ≥55000
Purity (HPLC) ≥75.0 %
Visual Interval pH 3.0 Green Pass
Visual Interval pH 4.6 Royal Blue Pass


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