Phenol red sodium salt, powder, Bioreagent cell culture reagent, Sigma-Aldrich®
Supplier: SIGMA-ALDRICH MICROSCOPYTotal Ratings: 0
Avg. Ratings: 0.0 out of 5
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Warning
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Synonyms:
Sodium hydrogen 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bisphenolate S,S-dioxide
, Phenol red water soluble
, 3,3-Bis(4-hydroxyphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide, sodium salt
M-Clarity™ quality level = MQ200
Phenol Red Sodium Salt (PRSS) is a water-soluble anionic fluorescent dye, that possesses an extra Na ion attached with the SO3 group compared to phenol red. It is intended for use in cell culture applications. A solution of phenol red will have a yellow color at a pH of 6,4 or below and a red color at a pH of 8,2 and above.
The sodium salt of phenol red is used widely in culture media to identify changes from neutral to acidic pH values and as a pH marker for cell tissue culture. It is typically used in cell culture media at 11 mg/L. Phenol red in tissue culture media can act as a weak estrogen, especially in human breast cancer cells. PRSS plays a role as an indicator in the process of dying cells or overgrowth of cells in different mediums. Suitable for use as a pH indicator.
Formula:
C₁₉H₁₃NaO₅S MW: 376.35 g/mol Melting Pt: 285 °C (dec., lit.) Storage Temperature: Room Temperature |
MDL Number:
MFCD00066901 CAS Number: 34487-61-1 EINECS: 252-057-8 Merck Index: 12,07397 |
Specification Test Results
Appearance (Colour) | Red to Very Dark Red and Red-Brown and Brown-Red |
Appearance (Form) | Powder |
Infrared spectrum | Conforms to Structure |
Solubility (Turbidity), 1 mg/ml, H₂O | Clear |
Suitability, Suitable for use as a pH indicator | Pass |
Visual Interval, pH 6.8 Yellow | Pass |
Visual Interval, pH 7.0 Orange | Pass |
Visual Interval, pH 8.2 Red | Pass |
Cell Culture Test | Pass |
Insect Cell Test | Pass |
Recommended Retest Period | 5 Years |
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