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205478

Bromoxylenol Blue

Name: Bromoxylenol Blue
Brand: ALDRICH

indicator grade, Dye content 95 %

Synonym(s):

3′,3″-Dibromo-p-xylenolsulfonphthalein

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About This Item

Empirical Formula (Hill Notation):

C₂₃H₂₀Br₂O₅S

CAS Number:

40070-59-5

Molecular Weight:

568.27

UNSPSC Code:

12171500

NACRES:

NA.47

PubChem Substance ID:

24852334

EC Number:

254-780-4

Beilstein/REAXYS Number:

369060

MDL number:

MFCD00005873

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Properties

grade

indicator grade

Quality Segment

200

form

powder or crystals

composition

Dye content, 95%

technique(s)

titration: suitable

pH

6.0-7.6, yellow to blue

mp

218 °C (dec.) (lit.)

solubility

ethanol: 1 mg/mL, clear

λ_max

417 nm

ε (extinction coefficient)

≥16000 at 417-421 nm in methanol at 0.016 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Cc1cc(c(C)c(Br)c1O)C2(OS(=O)(=O)c3ccccc23)c4cc(C)c(O)c(Br)c4C

InChI

1S/C23H20Br2O5S/c1-11-9-16(13(3)19(24)21(11)26)23(17-10-12(2)22(27)20(25)14(17)4)15-7-5-6-8-18(15)31(28,29)30-23/h5-10,26-27H,1-4H3

InChI key

MRDOFVRMTNWMDA-UHFFFAOYSA-N

Description

General description

Bromoxylenol blue (BXB) belongs to the sulfonphthalein family. It is also known as 3′,3′′-dibromo-p-xylenol sulfonphthalein.

Application

Bromoxylenol blue is a pH indicator (for pH ranges 6.0-7.6) that is routinely used in acid-base titrations. It is also used for the photometric determination of carboxylic acid impurities in organic liquids and polymers.

Recent applications of bromoxylenol blue include:

Building pH sensors
Developing optical sensors for high acidity measurements
Synthesizing antifungal activity compounds
Determination of drugs
In fiber-optic biosensors for the determination and detection of pesticides.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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