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Merck

114359

Sigma-Aldrich

Bromkresolgrün

ACS reagent, Dye content 95 %

Synonym(e):

BCG; 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxy-2-methylphenyl)-1,1-dioxo-2,1λ6-benzoxathiol-3-yl]-3-methylphenol

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About This Item

Empirische Formel (Hill-System):
C21H14Br4O5S
CAS-Nummer:
Molekulargewicht:
698.01
Beilstein:
372527
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12171500
PubChem Substanz-ID:
NACRES:
NA.47

Qualität

ACS reagent

Qualitätsniveau

Assay

≥95% (After Oxygen Combustion, silver nitrate titration)

Form

powder

Zusammensetzung

Dye content, 95%

visual transition interval

3.8, yellow(passes test)
3.8-5.4, yellow to blue(passes test)
4.5, green
5.4, blue

mp (Schmelzpunkt)

225 °C (dec.) (lit.)

λmax

423 nm

Anwendung(en)

diagnostic assay manufacturing
hematology
histology

Lagertemp.

room temp

SMILES String

Cc1c(Br)c(O)c(Br)cc1C2(OS(=O)(=O)c3ccccc23)c4cc(Br)c(O)c(Br)c4C

InChI

1S/C21H14Br4O5S/c1-9-12(7-14(22)19(26)17(9)24)21(13-8-15(23)20(27)18(25)10(13)2)11-5-3-4-6-16(11)31(28,29)30-21/h3-8,26-27H,1-2H3

InChIKey

FRPHFZCDPYBUAU-UHFFFAOYSA-N

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Allgemeine Beschreibung

Bromocresol Green is a synthetic triphenylmethane dye that is anionic in nature. At pH 3.8-5.4, it changes color from yellow to blue-green, and is therefore, commonly used as a pH indicator.

Anwendung

Bromkresolgrün (BKG) ist ein pH-sensitiver Triphenylmethanfarbstoff, nützlich in einer Vielzahl von kolorimetrischen Nachweistechnologien. BKG wird als Tracking-Farbstoff für die DNA Agarosegelelektrophorese, für Proteinbestimmungen und in Charge-Transfer-Komplexierungs-Prozessen verwendet. In der DC wird BKG zur Visualisierung von Verbindungen mit funktionellen Gruppen, deren pKa unter 5.0 liegt, eingesetzt.

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Gloves, type N95 (US)


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