Bromocresol Purple

Bezeichnung:Bromocresol Purple

CAS-Nr115-40-2

Englisch Name:Bromocresol Purple

CBNumberCB1347717

SummenformelC21H16Br2O5S

Molgewicht540.22

MOL-Datei115-40-2.mol

Bromocresol Purple physikalisch-chemischer Eigenschaften

Schmelzpunkt	240 °C (dec.) (lit.)
Dichte	1.6509 (estimate)
Flammpunkt	36 °C
storage temp.	Store at +5°C to +30°C.
Löslichkeit	ethanol: soluble1mg/mL
Aggregatzustand	Solid
pka	6.21, 6.3, 6.4(at 25℃)
Siedepunkt	590.2±50.0 °C(Predicted)
Farbe	Purplish-brown
Säure-Base-Indikators(pH-Indikatoren)	5.2(yellow)-6.8(purple)
PH	pH : 5.2～6.8
Wasserlöslichkeit	practically insoluble
maximale Wellenlänge (λmax)	419nm, 433nm, 591nm
Merck	14,1387
BRN	359618
Stabilität	Stable. Incompatible with strong oxidizing agents.
Major Application	Waveguides, fuel cells, sensors, sol-gel technology, display device, falsification-proof security paper, paints, detergents, identifying fresh and stale rice, detecting lactic acid bacteria, dental materials, vaginal infection test method
InChIKey	ABIUHPWEYMSGSR-UHFFFAOYSA-N
CAS Datenbank	115-40-2(CAS DataBase Reference)
EPA chemische Informationen	Bromcresol Purple (115-40-2)

Sicherheit

Kennzeichnung gefährlicher	Xi,Xn
R-Sätze:	36/37/38-10-20/21/22
S-Sätze:	26-36-37/39-16
RIDADR	UN 1993 3/PG 3
WGK Germany	3
TSCA	Yes
HS Code	29349990
Giftige Stoffe Daten	115-40-2(Hazardous Substances Data)

Gefahreninformationscode (GHS)

Bromocresol Purple Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R10:Entzündlich.
R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S16:Von Zündquellen fernhalten - Nicht rauchen.
Chemische Eigenschaften
Crystalline
Verwenden
It is used as a pH indicator and to measure serum albumin concentrations. It is used as a pH indicator (5.2-6.8 : yellow to blue-purple) and also used in spectrophotometric determination of serum-albumin.
Verwenden
Bromocresol purple has been used as a pH indicator in the yeast culture media. It has been used as a pH indicator in the culture media of Geobacillus stearothermophilus subsp. Calidolactis.
Verwenden
As indicator, pH 5.2 yellow; pH 6.8 purple.
Definition
ChEBI: A member of the class of 2,1-benzoxathioles that is 2,1-benzoxathiole 1,1-dioxide in which both of the hydrogens at position 3 have been substituted by 3-bromo-4-hydroxy-5-methylphenyl groups. A hydrophilic dye that is used as a pH indicator and to measure serum albumin concentrations.
Allgemeine Beschreibung
Bromocresol purple is a pH indicator, which changes color from yellow (at low pH 5.2) to violet (above pH 6.8). It aids in determining the dead cell count for cells with plasma membrane damage. Bromocresol purple is widely used as a fluorescent stain in yeast cells. Cells with an intact plasma membrane are not stained, while damaged cells are seen as blue-grey ghosts.
Biochem/physiol Actions
Bromocresol purple is a pH indicator which changes color from yellow (at low pH 5.2) to violet (above pH 6.8). It is mainly used as a fluorescent stain in yeast cells. It helps in dead cell count for cells with plasma membrane damage. Cells with proper cell membrane are not stained, while damaged cells are seen as blue-grey ghosts.
läuterung methode
Dissolve the dye in aqueous 5% NaHCO3 solution and precipitate it from a hot solution by dropwise addition of aqueous HCl. Repeat this until the UV/VIS-extinction did not increase at 419nm. It can also be recrystallised from *benzene. It is an indicator: at pH 5.2 (yellow) and pH 6.8 (purple). [Beilstein 19/3 V 460.]

Bromocresol Purple Upstream-Materialien And Downstream Produkte

Bromocresol Purple Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

115-40-2, Bromocresol Purple Verwandte Suche:

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