Bromocresol Purple

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115-40-2 Bromocresol Purple Bromocresol Purple

99%+ purity Bromocresol Purple with low price CAS 115-40-2

Bromocresol Purple Basic information
Product Name:	Bromocresol Purple
CAS:	115-40-2
MF:	C21H16Br2O5S
MW:	540.22
EINECS:	204-087-8
Bromocresol Purple Chemical Properties
Melting point	240 °C (dec.)(lit.)
density	1.6509 (estimate)
Fp	36 °C
storage temp.	Store at RT.
solubility	ethanol: soluble1mg/mL
pka	6.21, 6.3, 6.4(at 25℃)
form	Solid
Boiling point	590.2±50.0 °C(Predicted)
color	Purplish-brown
PH	pH : 5.2~6.8
PH Range	5.2(yellow)-6.8(purple)
Water Solubility	practically insoluble
λmax	419nm, 433nm, 591nm
Merck	141,387
BRN	359618
Stability:	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 DataBase Reference	115-40-2(CAS DataBase Reference)
EPA Substance Registry System	Bromcresol Purple (115-40-2)

Spec.:

Item	Standard
The maximum absorption wavelength:PH 35.2)nm	427~431
The maximum absorption wavelength:(PH 56.8) nm	588~590
Mass absorption coefficient(L/cm.g)PH 5.2,Dry sample)	40.5~45.0
Mass absorption coefficient(L/cm.g)PH 56.8,Dry sample)	100.0~110.0
PH Discoloration domain	5.2(yellow)~6.8(purple)
Dilute alkali dissolution test	Conforms
Residue on ignition(Sulfate)	0.1
Loss on Drying	0.5
Appearance	Conforms