Phenol Red CAS 143-74-8

Introduction:Basic information about Phenol Red CAS 143-74-8, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

Phenol Red Basic information

Product Name:Phenol Red
Synonyms:PHENOL REDRESEARCH GRADE;A-HYDROXY-A A-BIS(P-HYDROXYPHENYL)-O-TOLUENESULFONIC ACID G-SULTONE;3,3-BIS(P-HYDROXYPHENYL)-2,1-3H-BENZOXATHIOLE;SULFONAPHTHAL;TIMTEC-BB SBB006473;PR;PHENOSULFOHEPHTHALEIN INDICATOR;PHENOLSULFONPHTHALEIN
CAS:143-74-8
MF:C19H14O5S
MW:354.38
EINECS:205-609-7
Product Categories:Stains and Dyes;P;Stains&Dyes, A to;General Stains/Dyes for Stem Cell BiologyStains and Dyes;PReagents and Supplements;Cell Culture;Cell Viability and Proliferation;In Vivo/In Vitro Tracking of Stem CellsStem Cell Biology;Stains, Dyes and Indicators;Stem Cell Biology;Stem Cell Characterization;Analytical Chemistry;Indicator (pH);pH Indicators;Sulfonephthalein
Mol File:143-74-8.mol

Phenol Red Chemical Properties

Melting point >300 °C
Boiling point >300°C
bulk density200-300kg/m3
density 1.445 Mg m-3
refractive index 1.5300 (estimate)
Fp >300°C
storage temp. no restrictions.
solubility 1 M NaOH: soluble1mg/mL
form Solid
pka7.9(at 25℃)
color Red
PH Range6.6(YELLOW)-8.0(RED)
PH6.8~8.4
OdorOdorless
Water Solubility 0.77 g/L
λmax557nm, 558nm, 360nm, 423nm, 433nm
ε(extinction coefficient)≥10000 at 288-294nm in H2O
≥55000 at 555-561nm in H2O
≥7000 at 357-363nm in H2O
Merck 14,7247
BRN 326470
Major ApplicationDisplay device, sol-gel matrix, photoreceptors, fuel cells, waveguides, paints, detergents, cosmetics, antiperspirant composition, diapers, screening bacteria, detecting viable cells, diagnosis of urogenital ureaplasmosis, treatment of pathogen infections, amyloid-associated diseases, glaucoma, pulmonary hypertension, asthma, chronic obstructive pulmonary disease, erectile dysfunction, Raynaud’s syndrome, heparin overdose, vulvodynia, wound healing, psychoactive drugs, evaluating dental caries activity
Cosmetics Ingredients FunctionsBUFFERING
InChI1S/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
InChIKeyBELBBZDIHDAJOR-UHFFFAOYSA-N
LogP3.020
CAS DataBase Reference143-74-8(CAS DataBase Reference)
EPA Substance Registry SystemPhenol Red (143-74-8)

Safety Information

Hazard Codes Xi,C
Risk Statements 36/37/38-34
Safety Statements 37/39-26-45-36/37/39-27
WGK Germany 3
RTECS SJ7490000
TSCA TSCA listed
HS Code 29349990
Storage Class11 - Combustible Solids
Hazard ClassificationsSkin Irrit. 2
STOT SE 3
ToxicityLD50 orl-rat: >600 mg/kg CTOXAO 4(2),185,71

Phenol Red Usage And Synthesis

DescriptionPhenol red belongs to the class of triphenylmethane dyes and is widely used in the textile industry.
Chemical Propertiesdark red powder
UsesAs indicator in 0.02-0.05% alcohol solution. pH 6.8 yellow, 8.4 red.
UsesPhenol red is used as a non absorbed marker in gravimetric method. It is a pH indicator used in cell biology laboratories and in home swimming pool test kits. It is used to check the kidney function based on the excreted phenol red by colorimetric method.
UsesPhenol red solution acts as a pH indicator for the culture medium.
ApplicationPhenol red solution has been used:
As a tracer dye for microinjection of zebrafish eggs.
As a component of the mMW medium for preparation of mouse embryos.
In the preparation of versene-ethylenediamine tetraacetic acid (EDTA) solution.
PreparationPhenol red is prepared in Dulbecco′s Phosphate Buffered Saline.
DefinitionChEBI: 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 anindicator 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.
Biochem/physiol ActionsPhenol Red is a pH indicator which changes color from yellow to red.
Safety ProfileModerately toxic by ingestion and intravenous routes. Mutation data reported. When heated to decomposition it emits toxicvapors of SOx.
Enzyme inhibitorThis pH-indicating dye (FW = 354.38 g/mol; CAS 143-74-8; pKa = 7.9; yellow < pH 6.8; red > pH 8.4), also known as phenolsulfonphthalein and sulfophthalein, is a diagnostic aid for evaluating renal function. A typical stock indicator solution is 0.1 g phenol red in 28.2 mL 10 mM NaOH and 221.8 mL water. Target(s): aldehyde reductase; glutaminase; gglutamyl transpeptidase; glutathione S-transferase; 4- methyleneglutaminase; phosphate uptake; thromboxane A2/prostaglandin H2 receptor; and thyroglobulin iodination.

Phenol Red Preparation Products And Raw materials

Raw materialsZinc chloride-->2-Sulfobenzoic anhydride-->L-Cysteine hydrochloride monohydrate
Preparation ProductsBromophenol Blue
Phenol CAS 108-95-2
Phenol, 4,4′-sulfonylbis-, Polymer mit 1,1′-Oxibis[2-chlorethan], EO 2-12 mol (75 % EO 2-6 mol) CAS
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