115-40-2
115-40-2
Chemical Structure
Bromocresol purple
- CAS No.: 115-40-2
- Formula:C21H16Br2O5S
- Molecular Weight:540.22
IUPAC Name: 3,3-bis(3-bromo-4-hydroxy-5-methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide
InChIKey: ABIUHPWEYMSGSR-UHFFFAOYSA-N
SMILES: O=S1(OC(C2=CC(C)=C(O)C(Br)=C2)(C3=CC(C)=C(O)C(Br)=C3)C4=CC=CC=C41)=O
Biological Activity: Bromocresol purple is a pH indicator, whose color changes from yellow to purple when the pH increases from 5.2 to 6.8. Bromocresol purple can be used for detecting yeast cells with plasma membrane damage and measuring serum albumin concentrations[1][2][3].
| Cat. No. | Product Name | Purity | Description | Pricing | |||||||||||||||||||
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Bromocresol purple | 99.4% | Bromocresol purple is a pH indicator, whose color changes from yellow to purple when the pH increases from 5.2 to 6.8. Bromocresol purple can be used for detecting yeast cells with plasma membrane damage and measuring serum albumin concentrations. | ||||||||||||||||||||
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Bromophenol blue | Bromophenol blue is an acid phthalein dye, and it is used as a tracking dye for electrophoresis. Bromophenol blue is also used as a pH indicator, with a transition range of pH 3 to 4.6. Bromophenol blue is used as a sensor for the determination of several compounds including ammonia, drugs, proteins and amino acids. The binding of Bromophenol blue to proteins is accompanied by the appearance of a strong absorbance at 610 nm. | |||||||||||||||||||||
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Bromophenol red (sultone form) | Bromophenol red (sultone form) is a chemical indicator. Bromophenol red (sultone form) binds to lysozyme and inhibits its activity against the bacterial cell wall, but not the polysaccharide component of peptidoglycan. | |||||||||||||||||||||
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Cresol red, 97% | 99.30% | Cresol red, 97% is an acidic phenolsulfonphthalein triphenylmethane dye. Cresol red, 97% generates reactive oxygen species and singlet oxygen under ultrasonic irradiation, interacts with bovine serum albumin, alters the structure of bovine serum albumin, and oxidizes the fluorescent amino acid residues of bovine serum albumin. Cresol red, 97% can be decolorized and biodegraded by *Absidia spinosa* M15, producing phenylacetic acid and benzoic acid metabolites. Cresol red, 97% serves as a pH indicator (orange at pH 1.8-yellow at pH 2.0, yellow at pH 7.0-purple at pH 8.8). Cresol red, 97% can be used to indicate pH, temperature and salinity. | ||||||||||||||||||||
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Cresol Red sodium | Cresol Red sodium is a colorimetric pH indicator. Cresol Red sodium serves as an optical sensor for monitoring carbonic anhydrase-catalyzed reactions and as a colorimetric dye that responds to hydrogen ions generated during DNA synthesis. Cresol Red sodium can be used in the research of hepatitis A and COVID-19. | |||||||||||||||||||||
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Bromocresol green | 99.59% | Bromocresol green is a pH-sensitive triphenylmethane dye commonly used for the determination of protein and albumin in serum. Bromocresol green is a bio-based dye with a yellow-green to blue-green color. Bromocresol green turns yellow (λmax=435 nm, protonated form) when placed in acidic solution (e.g. pH=4.15), and turns blue in basic solution (λmax=615 nm, deprotonated form). Bromocresol green is widely used as a pH indicator in the field of biochemical analysis. In addition, Bromocresol green is also used to detect the concentration of molecules such as creatinine, and to judge the viability of cells. | ||||||||||||||||||||
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Bromophenol blue sodium | Bromophenol blue sodium salt is a biochemical reagent that can be used as a biological material or organic compound for life science related research. | |||||||||||||||||||||
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Bromocresol purple sodium | 95.73% | Bromocresol purple sodium is a pH indicator, whose color changes from yellow to purple when the pH increases from 5.2 to 6.8. Bromocresol purple sodium can be used for detecting yeast cells with plasma membrane damage and measuring serum albumin concentrations. | ||||||||||||||||||||
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Bromochlorophenol blue | Bromochlorophenol blue is a biochemical reagent. | |||||||||||||||||||||
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Bromochlorophenol Blue sodium salt | Bromochlorophenol Blue sodium salt, an acid-sensitive dye, is a pH-indicating dye. | |||||||||||||||||||||
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Bromophenol red sodium | Bromophenol red sodium is a chemical indicator. Bromophenol red sodium binds to lysozyme and inhibits its activity against the bacterial cell wall, but not the polysaccharide component of peptidoglycan. | |||||||||||||||||||||
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References
- [1]. Lei K J, et al. Screening and analysis of rhizosphere acidification deficiency mutants in Arabidopsis thaliana under low phosphorus[J].Soil ence and Plant Nutrition, 2015, 61(3):1-8.
- [2]. Kurzweilová H, et al. Fluorescent staining with bromocresol purple: a rapid method for determining yeast cell dead count developed as an assay of killer toxin activity. Yeast. 1993 Nov;9(11):1207-11. [Content Brief]
- [3]. Affonso A, et al. Bromocresol purple dye-binding method for the estimation of serum albumin adapted to the SMA 12/60. Clin Biochem. 1985 Oct;18(5):285-9. [Content Brief]
