Phenol Red

CAS Number: 143-74-8

Molecular Formula: C19H14O5S

Purity: Phenol Red 99% purity

About Phenol Red

Phenolsulfonphthalein (CAS 143-74-8) serves as a critical pH monitoring agent in biopharmaceutical cell culture media, where high purity fine chemicals are essential for the metabolic tracking of mammalian cell lines within US-based CDMO facilities. Sulfonphthalein Indicator is increasingly sought after through custom ...

Phenol Red Specifications

CAS Number

143-74-8

Molecular Formula

C19H14O5S

Molecular Weight

354.38 g/mol

IUPAC Name

4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1λ6-benzoxathiol-3-yl]phenol

Canonical SMILES

C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC=C(C=C3)O)C4=CC=C(C=C4)O

HSN No

29349990

CAS Number

143-74-8

Molecular Formula

C19H14O5S

Molecular Weight

354.38 g/mol

IUPAC Name

4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1λ6-benzoxathiol-3-yl]phenol

Canonical SMILES

C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC=C(C=C3)O)C4=CC=C(C=C4)O

HSN No

29349990

Molecular Weight

354.38 g/mol

Purity

Phenol Red 99% purity

pH Indicator

A versatile phenolsulfonphthalein compound utilized as a visual marker in scientific research and clinical diagnostics to monitor pH fluctuations, exhibiting a distinct color transition from yellow at pH 6.8 to bright pink above pH 8.2

Cell Culture Reagent

A common additive in mammalian and insect cell culture media used to assess cellular health, metabolism, and potential microbial contamination by providing real-time visual cues of media acidification

Diagnostic Aid

A critical component in clinical assays and medical diagnostic kits for evaluating renal function via the phenolsulfonphthalein (PSP) test, as well as investigating gastric ulcers and tear function

Analytical Chemistry Reagent

A reliable indicator employed in acid-base titrations, particularly for weak acid-strong base reactions, to ensure precise endpoint detection in laboratory environments.