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  4. Cresol red, 97%

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, 97%

Cresol red, 97% Chemical Structure

CAS No. : 1733-12-6

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
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Solution
10 mM * 1 mL in DMSO In-stock
Solid
100 mg In-stock
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Cresol red, 97% Related Antibodies

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Description

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[1][2].

In Vitro

Cresol red, 97% binds tightly to bovine serum albumin (BSA) via a static quenching mechanism, with an equilibrium binding constant of 7.25×105 L/M. There is one primary binding site, which effectively quenches the intrinsic fluorescence of BSA[1].
Cresol red, 97% generates reactive oxygen species (ROS) under ultrasonic irradiation, with singlet oxygen (1O2) as the main component, as demonstrated by oxidative extraction spectrophotometry[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Cresol red, 97% Related Antibodies
Molecular Weight

382.43

Formula

C21H18O5S
CAS No.
Appearance

Solid

SMILES

O=S1(OC(C2=CC=C(C(C)=C2)O)(C3=CC=CC=C31)C4=CC=C(C(C)=C4)O)=O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, protect from light, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

Solvent & Solubility
In Vitro: 

DMSO : 116.67 mg/mL (305.08 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.6149 mL 13.0743 mL 26.1486 mL
5 mM 0.5230 mL 2.6149 mL 5.2297 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

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Purity & Documentation
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.6149 mL 13.0743 mL 26.1486 mL 65.3714 mL
5 mM 0.5230 mL 2.6149 mL 5.2297 mL 13.0743 mL
10 mM 0.2615 mL 1.3074 mL 2.6149 mL 6.5371 mL
15 mM 0.1743 mL 0.8716 mL 1.7432 mL 4.3581 mL
20 mM 0.1307 mL 0.6537 mL 1.3074 mL 3.2686 mL
25 mM 0.1046 mL 0.5230 mL 1.0459 mL 2.6149 mL
30 mM 0.0872 mL 0.4358 mL 0.8716 mL 2.1790 mL
40 mM 0.0654 mL 0.3269 mL 0.6537 mL 1.6343 mL
50 mM 0.0523 mL 0.2615 mL 0.5230 mL 1.3074 mL
60 mM 0.0436 mL 0.2179 mL 0.4358 mL 1.0895 mL
80 mM 0.0327 mL 0.1634 mL 0.3269 mL 0.8171 mL
100 mM 0.0261 mL 0.1307 mL 0.2615 mL 0.6537 mL
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  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Cresol red, 97%1733-12-6Fluorescent DyeAbsidia spinosa M15tumorsinglet oxygenlaccasereactive oxygen speciesstatic quenching mechanismbenzeneacetic acidbovine serum albumintryptophan residuesbenzoic acidInhibitorinhibitorinhibit

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