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Bromocresol Purple

Bromocresol Purple Structure
CAS No.
115-40-2
Chemical Name:
Bromocresol Purple
Synonyms
BCP;bromocresol;BROMCRESOL PURPLE;BROMOCRESOL PURPLE SOLUTION;4,4’-(3h-2,1-benzoxathiol-3-ylidene)bis(2-bromo-6-methylphenol)s,s-dioxide;Nsc 374134;M.W. 540.24;Bromocresolred;BromocresolPurpbe;Bromocresol purpl
CBNumber:
CB1347717
Molecular Formula:
C21H16Br2O5S
Molecular Weight:
540.22
MOL File:
115-40-2.mol
MSDS File:
SDS
Modify Date:
2024/5/13 18:00:15

Bromocresol Purple Properties

Melting point 240 °C (dec.) (lit.)
Density 1.6509 (estimate)
Flash point 36 °C
storage temp. Store at +5°C to +30°C.
solubility ethanol: soluble1mg/mL
form Solid
pka 6.21, 6.3, 6.4(at 25℃)
Boiling point 590.2±50.0 °C(Predicted)
color Purplish-brown
PH Range 5.2(yellow)-6.8(purple)
PH pH : 5.2~6.8
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 Bromcresol Purple (115-40-2)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P280a-P304+P340-P305+P351+P338-P405-P501a-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
Hazard Codes  Xi,Xn
Risk Statements  36/37/38-10-20/21/22
Safety Statements  26-36-37/39-16
RIDADR  UN 1993 3/PG 3
WGK Germany  3
TSCA  Yes
HS Code  29349990
NFPA 704
1
0 0

Bromocresol Purple price More Price(16)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) B5880 Bromocresol Purple Technical grade 115-40-2 5G ₹3106.78 2022-06-14 Buy
Sigma-Aldrich(India) B5880 Bromocresol Purple Technical grade 115-40-2 25G ₹5802.2 2022-06-14 Buy
Sigma-Aldrich(India) B5880 Bromocresol Purple Technical grade 115-40-2 100G ₹23111.38 2022-06-14 Buy
Sigma-Aldrich(India) 114375 Bromocresol Purple BioReagent, suitable for indicator, Dye content 90?% 115-40-2 5G ₹5940 2022-06-14 Buy
Sigma-Aldrich(India) 114375 Bromocresol Purple BioReagent, suitable for indicator, Dye content 90?% 115-40-2 25G ₹17590 2022-06-14 Buy
Product number Packaging Price Buy
B5880 5G ₹3106.78 Buy
B5880 25G ₹5802.2 Buy
B5880 100G ₹23111.38 Buy
114375 5G ₹5940 Buy
114375 25G ₹17590 Buy

Bromocresol Purple Chemical Properties,Uses,Production

Chemical Properties

Crystalline

Uses

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.

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.

General Description

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.

Purification Methods

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 Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 450)Suppliers
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Central Drug House(P) Ltd. 91-11-49404040 New Delhi, India 6160 58 Inquiry
A,A-BIS(5-BROMO-4-HYDROXY-M-TOLYL)-A-HYDROXY-O-TOLUENESULFONIC ACID G-SULTONE 5',5''-DIBROMO-2-CRESOLSULFONEPHTHALEIN 5',5''-DIBROMO-O-CRESOLSULFONEPHTHALEIN 5',5'-DIBROMO-O-CRESOLSULFONEPHTHALEIN 5',5''-DIBROMO-O-CRESOLSULFONPHTHALEIN 5,5'-DIBROMO-O-CRESOLSULFONPHTHALEIN BROMOCRESOL PURPLE INDICATOR GRADE BROMOCRESOL PURPLE, FOR MICROSCOPY BROMOCRESOL PURPLE SOLUTION, ACID-BASEIN DICATOR BROMOCRESOL PURPLE INDICATOR, REAG. PH. EUR. BROMO CRESOL PURPLE SOLUTION 100 ML BromocresolPurpleIndicatorSolution BromoethaneForSynthesis BromocresolPurple,FreeAcid M.W. 540.24 BROMOCRESOL PURPLE, REAG. BromocresolPurpbe BROMCRESOL PURPLE SULTONE FORM BROMOCRESOL PURPLE BROMOCRESOL PURPLE ETHANOL(20) BROMOCRESOL PURPLE TS DIBROMO-O-CRESOLSULFONPHTHALEIN Bromocresolred dibromo-o-cresolphthaleinsulfone pourpredebromocresol 3H-2,1-Benzoxathiole, phenol deriv. Bromocresol Purple Solution [for spray] 3,3-Bis(3-bromo-4-hydroxy-5-methylphenyl)-3H-2,1-benzoxathiol 1,1-dioxide 3,3-Bis(3-bromo-4-hydroxy-5-methylphenyl)-3H-2,1-benzoxathiole 1,1-dioxide 3,3-Bis(4-hydroxy-3-bromo-5-methylphenyl)-3H-2,1-benzoxathiole 1,1-dioxide Bromocresol Purple,pure,indicator grade Bromocresol Purple,Free Acide BroMocresol Purple, indicator grade, pure 140GR BroMocresol Purple, indicator grade, pure 25GR BroMocresol Purple, indicator grade, pure 5GR BroMocresol Purple (BCP) BROMOCRESOL PURPLE INDICATOR 5 G BROMOCRESOL PURPLE INDICATOR 25 G 3,3-Bis(3-broMo-4-hydroxy-5-Methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide BroMocresol Purple, Sultone, Reagent, ACS BroMocresol Purple, ACS reagent, indicator BroMocresol purole 3,3-Bis(3-bromo-4-hydroxy-5-methylphenyl) Nsc 374134 O-toluenesulfonic acid, Α,α-bis(5-bromo-4-hydroxy-m-tolyl)-α-hydroxy-, Γ-sultone 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 3',3''-DIBROMO-O-CRESOLSULFONPHTHALEIN Bromocresol Purple, indicator grade, pure Phenol, 4,4-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis2-bromo-6-methyl- Bromocresol Purple (0.04% in Water) [for pH Determination] Bromocresol Purple (0.05% in ca. 20% Ethanol) [for Titration] 5,5μ-Dibromo-o-cresolsulfonphthalein, Bromcresol purple sultone form Bromocresol purple *CAS 115-40-2* *Ultrapure grade* Bromocresol Purple, ACS Grade Bromocresol Purple, indicator, ACS reagent 0.04w/v% Bromocresol Purple Solution Bromocresol Purple >