Synonym:
5,5′-Dibromo-o-cresolsulfonphthalein,
Bromcresol purple sultone form
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CAS Number 115-40-2
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Empirical Formula (Hill Notation) C21H16Br2O5S
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Molecular Weight 540.22
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Beilstein Registry Number 359618
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EC Number 204-087-8
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MDL number MFCD00011681
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PubChem Substance ID 24847168
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Popular Documents: Specification Sheet (PDF)
Properties:
Related Categories |
Analytical Reagents,
Analytical/Chromatography,
B,
Cell Biology,
Hematology and Histology,
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InChI Key
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ABIUHPWEYMSGSR-UHFFFAOYSA-N
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product line
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BioReagent
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form
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powder
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composition
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Dye content, 90%
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pH range
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5.2 - 6.8, yellow to purple
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visual transition interval
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5.2 - 6.8, yellow to blue
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mp
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240 °C (dec.)(lit.)
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solubility
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ethanol: 1 mg/mL
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absorption
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extinction/418-424 nm, methanol ≥22000
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λmax 419 nm
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suitability
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suitable for indicator
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Description:
Application
Spectrophotometric determination of serum-albumin
Bromocresol Purple has been used for staining of Saccharomyces cerevisiae.
Packaging
5, 25 g in glass bottle
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.
Safety:
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
RIDADR
NONH for all modes of transport