Bromocresol Purple
- Product Name
- Bromocresol Purple
- 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
- Formula Weight
- 540.22
- MOL File
- 115-40-2.mol
Bromocresol Purple Property
- 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
- pka
- 6.21, 6.3, 6.4(at 25℃)
- form
- Solid
- 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
- 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
- Hazardous Substances Data
- 115-40-2(Hazardous Substances Data)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405Store locked up.
N-Bromosuccinimide Price
- Product number
- 114375
- Product name
- Bromocresol Purple
- Purity
- BioReagent, suitable for indicator, Dye content 90%
- Packaging
- 5g
- Price
- $71.4
- Updated
- 2024/03/01
- Product number
- 114375
- Product name
- Bromocresol Purple
- Purity
- BioReagent, suitable for indicator, Dye content 90%
- Packaging
- 25g
- Price
- $212
- Updated
- 2024/03/01
- Product number
- 1.03025
- Product name
- Bromocresol purple
- Purity
- indicator ACS,Reag. Ph Eur
- Packaging
- 5G
- Price
- $141
- Updated
- 2024/03/01
- Product number
- 1.03025
- Product name
- Bromocresol purple
- Purity
- indicator ACS,Reag. Ph Eur
- Packaging
- 25g
- Price
- $351
- Updated
- 2024/03/01
- Product number
- B0580
- Product name
- Bromocresol Purple
- Purity
- >97.0%(HPLC)
- Packaging
- 25g
- Price
- $162
- Updated
- 2024/03/01
Bromocresol Purple Chemical Properties,Usage,Production
Chemical Properties
Crystalline
Uses
As indicator, pH 5.2 yellow; pH 6.8 purple.
Uses
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.
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.
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.
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
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View Lastest Price from Bromocresol Purple manufacturers
- Product
- Bromocresol Purple 115-40-2
- Price
- US $6.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 2000KG/Month
- Release date
- 2024-08-09
- Product
- Bromocresol Purple 115-40-2
- Price
- US $79.00-38.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 20ton
- Release date
- 2024-11-22
- Product
- Bromocresol Purple 115-40-2
- Price
- US $6.00/kg
- Min. Order
- 1kg
- Purity
- More than 99%
- Supply Ability
- 2000KG/Month
- Release date
- 2024-05-13