Phenol Red Sodium Salt CAS: 34487-61-1
MF: C19H13NaO5S
MW: 376.36
A water soluble pH indicator commonly employed in cell biology laboratories as a cell tissue culture pH marker.

Phenol Red Sodium Salt (CAS 34487-61-1)

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Alternate Names: Phenolsulfonephthalein Sodium Salt
Application: Phenol Red Sodium Salt is a water soluble pH indicator commonly employed in cell biology laboratories as a cell tissue culture pH marker
CAS Number: 34487-61-1
Molecular Weight: 376.36
Molecular Formula: C19H13NaO5S
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data (including water content).
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Phenol Red sodium salt is a water soluble pH indicator used in the 6.8 (yellow) to 8.2 (red) range. It is commonly employed in cell biology laboratories as a cell tissue culture pH marker. Under normal conditions, phenol red added to the growth medium will have a pink-red color. Usually 15 mg/l is used to produce this effect. If problems arise, such as dying cells or overgrowth of contaminants, this will cause a change in pH resulting in a change in indicator color. This color change is an indication that the medium needs to be replaced. Additionally, Phenol Red could potentially be useful as a differentiation factor.

Appearance :
Crystalline or powder
Physical State :
Solid
Solubility :
Soluble in water yielding a dark red solution (25 mg/ml), alcohol (4 mg/ml), methanol, ethanol (200 mg/ml), and aqueous alkali hydroxides or carbonates with formation of a red colored solution.
Storage :
Store at room temperature
Melting Point :
285° C (lit.)(dec.)
pK Values :
pKa: 7.9
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
WGK Germany :
3
PubChem CID :
Merck Index :
14: 7247
MDL Number :
MFCD00066901
EC Number :
252-057-8
Beilstein Registry :
6260026
SMILES :
C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC=C(C=C3)O)C4=CC=C(C=C4)[O-].[Na+]

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Certificate of Analysis

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Phenol Red Sodium Salt (CAS 34487-61-1)  Product Citations

See how others have used Phenol Red Sodium Salt (CAS 34487-61-1). Click on the entry to view the PubMed entry .

Citations 1 to 2 of 2 total

PMID: # 20456039  Carneiro, VL. et al. 2010. Liver Int. 30: 567-573.

PMID: # 19386843  Brugger, SD. et al. 2009. J. Clin. Microbiol. 47: 1750-1756.

Citations 1 to 2 of 2 total
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