Bromocresol Purple

$ 1.00 /1KG

career henan chemical co

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China

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Chemical Properties

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Bromocresol Purple Basic information

Product Name:	Bromocresol Purple
Synonyms:	4,4’-(3h-2,1-benzoxathiol-3-ylidene)bis(2-bromo-6-methylphenol)s,s-dioxide;4,4’-(3h-2,1-benzoxathiol-3-ylidene)bis(2-bromo-6-o-cresol)s,s-dioxide;4,4’-(3H-2,1-Benzoxathiol-3-ylidene)bis[2-bromo-b-methylphend]S,S-dioxide;bromocresol;Bromocresolred;dibromo-o-cresolphthaleinsulfone;pourpredebromocresol;DIBROMO-O-CRESOLSULFONPHTHALEIN
CAS:	115-40-2
MF:	C21H16Br2O5S
MW:	540.22
EINECS:	204-087-8
Product Categories:	Organics;Analytical Chemistry;Indicator (pH);pH Indicators;Stains and Dyes;Sulfonephthalein
Mol File:	115-40-2.mol

Bromocresol Purple Chemical Properties

Melting point	240 °C (dec.)(lit.)
Fp	36 °C
storage temp.	Store at RT.
solubility	ethanol: soluble1mg/mL
form	Solid
pka	6.21, 6.3, 6.4(at 25℃)
color	Purplish-brown
PH Range	5.2(yellow)-6.8(purple)
Water Solubility	practically insoluble
λmax	419nm, 433nm, 591nm
Merck	14,1387
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	Phenol, 4,4'-(1,1-dioxido-3H- 2,1-benzoxathiol-3-ylidene) bis[2-bromo-6-methyl-(115-40-2)

Safety Information

Bromocresol Purple Usage And Synthesis

Chemical Properties	Crystalline
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.
Uses	As indicator, pH 5.2 yellow; pH 6.8 purple.