Skip to content
Molekula

Molekula

Phenol Red - Pharma EU

SKU 90038688 CAS 143-74-8 C19H14O5S MW 354.38 Available on enquiry

Supplying 4,500+ customers in over 80 countries

ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Certificate of Analysis with every batch

Phenol Red (phenolsulfonphthalein) is a pH indicator dye used in cell culture media and laboratory analysis. This Pharma EU grade has CAS 143-74-8, formula C19H14O5S and molecular weight 354.38 g/mol. It is stored at ambient temperature and carries the signal word Warning. Molekula supplies Phenol Red - Pharma EU from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

This substance is available from Molekula on enquiry. Full specification, Safety Data Sheet and Certificate of Analysis documentation are provided with your quotation once our team confirms the grade and pack size you need.

Contact sales
Expect a response within hours Speak to a chemist: +44 (0) 3302 000333

Overview

SKU
90038688
CAS Number
143-74-8
IUPAC Name
4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]phenol
EC Number
205-609-7
Molecular Formula
C19H14O5S
Molecular Weight
354.38
Exact Mass
354.0562
SMILES
C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC=C(C=C3)O)C4=CC=C(C=C4)O
InChIKey
BELBBZDIHDAJOR-UHFFFAOYSA-N
InChI
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
PubChem CID
4766

Synonyms

  • 2-(Bis(4-hydroxyphenyl)methyliumyl)benzenesulfonate
  • 3,3-bis(4-hydroxyphenyl)-3H-2,1??-benzoxathiole-1,1-dione
  • Fenolipuna
  • PHENOL RED
  • Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis-, (S,S-dioxide)
  • phenolsulfonphthalein
  • Phenolsulphonphthalein
  • PSP (indicator)
  • Sulfonphthal
  • Sulphonthal

See all 2 other grades of CAS 143-74-8 →

Frequently asked questions

What is Phenol Red used for?

Phenol Red is widely used as a pH indicator, for example in cell culture media and in laboratory titrations.

What is the CAS number of Phenol Red?

The CAS number of Phenol Red is 143-74-8.

What are the molecular formula and molecular weight of Phenol Red?

Phenol Red has the molecular formula C19H14O5S and a molecular weight of 354.38 g/mol.

How should Phenol Red be stored?

Phenol Red should be stored at ambient temperature.

What is the GHS signal word for Phenol Red?

Phenol Red carries the GHS signal word "Warning", so consult the Safety Data Sheet for the full hazard and precautionary statements before handling.

What grade of Phenol Red does Molekula offer?

This product is supplied in Molekula's Pharma EU grade.

Related products

Molekula has supplied fine chemicals and biochemicals since 2000 from ISO 9001:2015 and ISO 14001:2015 certified facilities. Every dispatched batch is logged with a batch number and matched to a Certificate of Analysis, and Safety Data Sheets are available in five languages.

Request a quote
Tell us the product and the quantity you need — including quantities larger than our listed packs. Expect a response within hours.
Full name
Company
Email
Phone (optional)
Product
Quantity needed

Ask for whatever you actually need — the pack sizes on our catalogue pages are a starting point, not a limit.

Message
View basket