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p-Xylenol Blue

p-Xylenol Blue

CAS Number: 125-31-5

Molecular Formula: C23H22O5S

Purity: p-Xylenol Blue 90% purity

About p-Xylenol Blue

p-Xylenol Blue (CAS 125-31-5) is a vital sulfonephthalein dye extensively utilized within the API intermediates market for the high-precision monitoring of enzymatic reactions and microbial growth during the synthesis of pharmaceutical compounds. p-Xylenolsulfonephthalein functions as a high-performance pH indicator fo...

p-Xylenol Blue Specifications

CAS Number
125-31-5
Molecular Formula
C23H22O5S
Molecular Weight
410.48 g/mol
IUPAC Name
4-[3-(4-hydroxy-2,5-dimethylphenyl)-1,1-dioxo-2,1λ6-benzoxathiol-3-yl]-2,5-dimethylphenol
Canonical SMILES
CC1=CC(=C(C=C1O)C)C2(C3=CC=CC=C3S(=O)(=O)O2)C4=C(C=C(C(=C4)C)O)C
PubChem CID
67172
HSN No
32049000
Molecular Weight
410.48 g/mol
Purity
p-Xylenol Blue 90% purity

pH Indicator

A versatile sulfonephthalein dye used in acid-base titrations and chemical sensors, providing distinct color transitions from red to yellow (pH 1.2-2.8) and yellow to blue (pH 8.0-9.6)

Biochemical Assay Reagent

A colorimetric indicator employed in enzyme activity studies, protein quantification, and microbiological assays to monitor bacterial growth through pH changes in culture media

Histology and Cytology Stain

A specialized diagnostic dye used to enhance the visualization of cellular structures and tissue samples in medical research and clinical diagnostics

Industrial Chemical Additive

A functional component used in the production of electrochromic displays, optical quality films, inks, and lubricants, as well as in corrosion testing and food storage monitoring.

Minimum Order Quantity

25 kg (pilot) · 1 MT (commercial)

Lead Time

3 – 5 weeks ex-works

Incoterms

FOB · CIF

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

Regional Availability

India · EU · Middle East · Southeast Asia

Documentation

SDS · COA · TDS available on request

Compliance & Quality

REACH registered*

GHS/SDS available

ISO 9001:2015 site*

RoHS compliant*

Global sourcing network

Consistent quality & reliability

End-to-end technical support

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