Phenol Red
4 Inquiries
143-74-8
99%
Bottle,barrel,cargo,container,etc.
Yes
2026-10-29
Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals
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Product Description
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Seller Information
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Inquiry History
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DescriptionKeywords
143-74-8
Phenol Red
C19H14O5S
Quick DetailsProName:Phenol Red
CasNo:143-74-8
Molecular Formula:C19H14O5S
Appearance:powder, or liquid
Application:Pharmaceuticals, intermediates, APIs, custom synthesis, chemicals
DeliveryTime:5-7 Days
PackAge:Bottle, barrel, cargo, container, etc.
Port:Shanghai
Purity:99
Storage:Stored in room temperature, ventilated place
Transportation:By air, ship, express, etc.
LimitNum:0
Grade:Industrial Grade
SuperiorityBest Seller, High Quality, Competitive Price, Fast Delivery, Quick Response
DetailsLEAPChem supplies high quality Pharmaceuticals, intermediates, APIs, custom synthesis, fine chemicals and other industrial chemicalsECHEMI Editorial ReferencePhenol 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.Basic Info-
Product Name:
Phenol red
Other Name:Phenol,4,4′-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis-;Phenol,4,4′-(3H-2,1-benzoxathiol-3-ylidene)di-,S,S-dioxide;Phenol,4,4′-(3H-2,1-benzoxathiol-3-ylidene)bis-,S,S-dioxide;3H-2,1-Benzoxathiole,phenol deriv.;4,4′-(1,1-Dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[phenol];3,3-Bis(p-hydroxyphenyl)-2,1-3H-benzoxathiole 1,1-dioxide;α-Hydroxy-α,α-bis(p-hydroxyphenyl)-o-toluenesulfonic acid γ-sultone;Phenol red;Phenolsulfonephthalein;Phenolsulfonphthalein;Sulfonphthal;Phenolsulphonphthalein;3H-2,1-Benzoxathiole,3,3-bis(4-hydroxyphenyl)-,1,1-dioxide;Fenolipuna;PSP (indicator);Sulphental;Sulphonthal;PSP;TF-R 2;NSC 10459;2877-88-5
CAS No.:143-74-8
Molecular Formula:C19H14O5S
InChIKeys:InChIKey=BELBBZDIHDAJOR-UHFFFAOYSA-N
Molecular Weight:354.37600
Exact Mass:354.38
EC Number:205-609-7
UNII:I6G9Y0J1OJ
NSC Number:10459
DSSTox ID:DTXSID8022408
ATC Code:V - Various
HScode:29349990
Categories:
Characteristics-
PSA:
92.21000
XLogP3:3
Density:1.477 g/cm3
Melting Point:>300 °C
Boiling Point:562.8ºC at 760 mmHg
Flash Point:79ºC
Refractive Index:1.4334 (18ºC)
Water Solubility:H2O: 0.77 g/L
Storage Conditions:Store at RT.
Vapor Pressure:2.84E-13mmHg at 25°C
Hazard IdentificationClassification of the substance or mixture
Skin irritation, Category 2
Specific target organ toxicity â single exposure, Category 3
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Warning
Hazard statement(s) H315 Causes skin irritation
H335 May cause respiratory irritation
Precautionary statement(s) Prevention P264 Wash ... thoroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
Response P302+P352 IF ON SKIN: Wash with plenty of water/...
P321 Specific treatment (see ... on this label).
P332+P317 If skin irritation occurs: Get medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P319 Get medical help if you feel unwell.
Storage P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Trader
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Main Products:
Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals
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Location:
Room A, 23rd Floor, No. 609 Yan'an Road, Gongshu District, Hangzhou, Zhejiang
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Payment Terms:
TT against copy of documents,D/P,L/C
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Average lead Time:
5 days
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Total Annual Revenue:
Above $100 million
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Year of Establishment:
2020
Company Certificates-
ISO
">Company ProfileLEAPChem is a specialized fine chemical supplier for research, development and production.
LEAPChem provides nearly 200,000 rare and innovative chemical products to support the evolving needs of our customers in research & bulk manufacturing activities.
As a highly customer-oriented enterprise, we are committed to providing high-quality customer services and products to our global customers in a cost-effective and efficient manner.
Our client list includes many major pharmaceutical and science companies, universities, research institutions and chemical catalogue companies.
Methodology: Sound & Stable; Active & Innovative.
Attitude: Conscientious; Ingenious.
Goals: Customer's Satisfaction
We regard client's success as our success.
At LEAPChem, we strive to be the preferred supplier for efficiency increasing and cost lowering in your Research & Production.
To achieve this strategic vision, we always push ourselves to exceed our customer's requirement. By focusing on the aim of 'Beyond Your Expectation', we continually expand our product lines, and enhance our systematic management and human resources.
Welcome to contact us and we look forward to becoming your reliable and preferred partner.
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Inquiry History4 Inquiries
Country Product Purchase Quantity Date Posted 
Czech
Phenol Red
1 20' Fcl Nov 17, 2025 
United States
Phenol red
25 KG Oct 31, 2025
United States
Phenol Red
25 KG Oct 31, 2025 
India
Phenol Red 99% Red powder
100 TON Aug 30, 2024 Post an enquiry for this product
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