This product has only one sodium as part of the molecule - C19H13NaO5S. The sodium content is not measured as a part of the Quality Control testing.
114537
Phenol Red sodium salt
ACS reagent, Dye content 90 %
Synonym(s):
Phenolsulfonephthalein sodium salt
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About This Item
Empirical Formula (Hill Notation):
C19H13NaO5S
CAS Number:
Molecular Weight:
376.36
Beilstein:
6260026
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47
Pricing and availability is not currently available.
Recommended Products
grade
ACS reagent
Quality Level
form
powder or crystals
composition
Dye content, 90%
clarity of soln
passes test
technique(s)
titration: suitable
color
red to very dark red
visual transition interval
6.8-8.2, yellow to red
6.8-8.2, yellow to red
mp
285 °C (dec.) (lit.)
λmax
423 nm
ε (extinction coefficient)
≥19000 at 422-426 nm in methanol
≥900 at 256-269 nm in methanol
storage temp.
room temp
SMILES string
[Na+].Oc1ccc(cc1)C2(OS(=O)(=O)c3ccccc23)c4ccc([O-])cc4
InChI
1S/C19H14O5S.Na/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;/q;+1/p-1
InChI key
HKHYOKBQJILTEI-UHFFFAOYSA-M
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Application
Phenol Red has been used for preparation of phosphate buffer saline (PBS)-with phenol red for microfluidic assay for simultaneous culture of multiple cell types.[1] It has also been used for horseradish peroxidase-phenol red (HRP-PR) H2O2 (hydrogen peroxide) detection assay to identify redox cycling compounds.[2]
Suitable for use as a pH indicator.
Biochem/physiol Actions
Phenol Red is a pH indicator which changes color from yellow to red.[3]
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Skin Irrit. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Hi there, could i know how many sodium salt in this powder? THANKS.
1 answer-
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