MilliporeSigma
All Photos(3)

Documents

P3532

Sigma-Aldrich

Phenol Red

powder, BioReagent, suitable for cell culture

Sign Into View Organizational & Contract Pricing

Synonym(s):
Phenolsulfonphthalein
Empirical Formula (Hill Notation):
C19H14O5S
CAS Number:
Molecular Weight:
354.38
Beilstein/REAXYS Number:
326470
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.47

product line

BioReagent

Quality Level

form

powder

technique(s)

cell culture | mammalian: suitable

color

dark red to dark brown

visual transition interval

6.8-8.2, yellow to red

mp

>300 °C

solubility

1 M NaOH: 1 mg/mL

application(s)

diagnostic assay manufacturing

storage temp.

room temp

SMILES string

Oc1ccc(cc1)C2(OS(=O)(=O)c3ccccc23)c4ccc(O)cc4

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

InChI key

BELBBZDIHDAJOR-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
114529P02901.07241
Phenol Red powder, BioReagent, suitable for cell culture

P3532

Phenol Red

Phenol Red ACS reagent

114529

Phenol Red

Phenol red solution 0.5%, liquid, sterile-filtered, BioReagent, suitable for cell culture

P0290

Phenol red solution

Phenol red indicator ACS

1.07241

Phenol red

color

dark red to dark brown

color

-

color

-

color

-

solubility

1 M NaOH: 1 mg/mL

solubility

water: 0.77 g/L at 100 °C

solubility

-

solubility

-

form

powder

form

powder

form

liquid

form

solid

application(s)

diagnostic assay manufacturing

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

-

application(s)

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

General description

Phenol Red is a phenolsulfonphthalein compound. It is present as a sulfonated hydroxyquinone in weakly acidic aqueous solutions. In alkaline solutions, the dye forms a hydrophilic dianion (a small, red anion and has a larger conjugated system than the yellow hydroxyquinone).

Application

Phenol red is commonly used as a pH indicator in biology and medicine. It is incorporated into microbiological culture media for the identification of Escherichia coli strains. Its clinical diagnostic applications include investigation of gastric and duodenal ulcers and in the assessment of tear function in ophthalmology. Phenol red is also used as a tracer to assess the permeability of the ileal mucosal membrane and to assess bacterial leakage through root-filling materials in dentistry.
Suitable for use as a pH indicator.

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 1

1 of 1

Cresol red indicator grade, Dye content 95 %

Sigma-Aldrich

114472

Cresol red

Shin-Nosuke Uno et al.
Nature chemistry, 6(8), 681-689 (2014-07-24)
Single-molecule localization microscopy is used to construct super-resolution images, but generally requires prior intense laser irradiation and in some cases additives, such as thiols, to induce on-off switching of fluorophores. These requirements limit the potential applications of this methodology. Here
Sabine C Den Hartogh et al.
Stem cells (Dayton, Ohio), 33(1), 56-67 (2014-09-05)
Understanding early differentiation events leading to cardiogenesis is crucial for controlling fate of human pluripotent stem cells and developing protocols that yield sufficient cell numbers for use in regenerative medicine and drug screening. Here, we develop a new tool to
Lynsey M Cree et al.
Human reproduction (Oxford, England), 30(6), 1410-1420 (2015-03-31)
Does maternal ageing and ovarian stimulation alter mitochondrial DNA (mtDNA) copy number and gene expression of oocytes and cumulus cells from a novel bovine model for human IVF? Oocytes collected from females with identical nuclear genetics show decreased mtDNA copy
Tatsuya Murakami et al.
ACS nano, 8(7), 7370-7376 (2014-06-20)
Surface engineering of mesoscopic metal nanoparticles to increase biocompatibility and cell interaction is important for improvement of their therapeutic properties. Here, we describe a strategy to stabilize mesoscopic metal nanoparticles and to enhance their cell interaction by stepwise addition of
Philipp Müller et al.
Cancer immunology research, 2(8), 741-755 (2014-06-12)
Antibody-drug conjugates (ADC) are emerging as powerful treatment strategies with outstanding target-specificity and high therapeutic activity in patients with cancer. Brentuximab vedotin represents a first-in-class ADC directed against CD30(+) malignancies. We hypothesized that its sustained clinical responses could be related

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service