| Size | Price | Stock | Qty |
|---|---|---|---|
| 25g |
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| Other Sizes |
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| ln Vitro |
For a fast assessment of the culture's health, phenol red (PR), the standard pH indicator in a variety of cell and tissue culture media, is used. The detection of cellular hydrogen peroxide and human peroxidase enzyme activity has also been accomplished through the use of phenol red in a number of protocols[1].
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|---|---|
| References | |
| Additional Infomation |
Phenol red is 3H-2,1-Benzoxathiole 1,1-dioxide in which both of the hydrogens at position 3 have been substituted by 4-hydroxyphenyl groups. A pH indicator changing colour from yellow below pH 6.8 to bright pink above pH 8.2, it is commonly used as an indicator in cell cultures and in home swimming pool test kits. It is also used in the (now infrequently performed) phenolsulfonphthalein (PSP) test for estimation of overall blood flow through the kidney. It has a role as a two-colour indicator, an acid-base indicator and a diagnostic agent. It is a 2,1-benzoxathiole, a member of phenols, a sultone and an arenesulfonate ester.
Phenolsulfonphthalein or otherwise called phenol red is a pH indicator commonly used in cell biology laboratories. Phenolsulfonphthalein is being investigated for use clinically due to its weak estrogen mimicking actions. Red dye, pH indicator, and diagnostic aid for determination of renal function. It is used also for studies of the gastrointestinal and other systems. |
| Molecular Formula |
C19H14O5S
|
|---|---|
| Molecular Weight |
354.38
|
| Exact Mass |
354.056
|
| CAS # |
143-74-8
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| Related CAS # |
Phenol Red sodium salt;34487-61-1
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| PubChem CID |
4766
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| Appearance |
Red to reddish brown solid powder
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| Density |
1.5±0.1 g/cm3
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| Boiling Point |
562.8±50.0 °C at 760 mmHg
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| Melting Point |
300 °C
|
| Flash Point |
294.2±30.1 °C
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| Vapour Pressure |
0.0±1.6 mmHg at 25°C
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| Index of Refraction |
1.697
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| LogP |
3.02
|
| Hydrogen Bond Donor Count |
2
|
| Hydrogen Bond Acceptor Count |
5
|
| Rotatable Bond Count |
2
|
| Heavy Atom Count |
25
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| Complexity |
545
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| Defined Atom Stereocenter Count |
0
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| InChi Key |
BELBBZDIHDAJOR-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C19H14O5S/c20-15-9-5-13(6-10-15)19(14-7-11-16(21)12-8-14)17-3-1-2-4-18(17)25(22,23)24-19/h1-12,20-21H
|
| Chemical Name |
4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1λ6-benzoxathiol-3-yl]phenol
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| HS Tariff Code |
2934.99.9001
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| Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: This product requires protection from light (avoid light exposure) during transportation and storage. |
| Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| Solubility (In Vitro) |
DMSO: 50 mg/mL (141.09 mM)
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|---|---|
| Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.5 mg/mL (7.05 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.5 mg/mL (7.05 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 2.8218 mL | 14.1091 mL | 28.2183 mL | |
| 5 mM | 0.5644 mL | 2.8218 mL | 5.6437 mL | |
| 10 mM | 0.2822 mL | 1.4109 mL | 2.8218 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration： mg/mL；
Method for preparing DMSO stock solution： mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation:：Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O，mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
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