Cresol Red (W/S)

Cresol Red (W/S)

CAS Number
62625-29-0
Molecular Formula
C21H18O5S
Purity
Cresol Red (W/S) 95% purity

About Cresol Red (W/S)

Cresol Red (CAS 1733-12-6) serves as a critical pH indicator in high-purity fine chemicals markets, where its dual-transition range is essential for precise colorimetric determination in both acidic and alkaline environments. o-Cresolsulfonphthalein has seen a surge in demand from US-based custom synthesis services and...

Cresol Red (W/S) Specifications

CAS Number
62625-29-0
Molecular Formula
C21H18O5S
Molecular Weight
404.41 g/mol
IUPAC Name
sodium 4-[3-(4-hydroxy-3-methylphenyl)-1,1-dioxo-2,1λ6-benzoxathiol-3-yl]-2-methylphenolate
HSN No
29349990
Molecular Weight
404.41 g/mol
Purity
Cresol Red (W/S) 95% purity

pH Indicator

A widely used acid-base indicator employed for routine pH assessments in microbial culture media preparations, water quality testing, and environmental monitoring, exhibiting a distinct color change from yellow to red/violet between pH 7.2 and 8.8

Electrophoresis Tracking Dye

A versatile color marker utilized in agarose and polyacrylamide gel electrophoresis to monitor the migration of DNA, RNA, and proteins, typically running at a rate similar to a 125 base pair DNA molecule

PCR Reagent Constituent

A compatible amplification indicator added to PCR master mixes to facilitate visual confirmation of reaction progress and reduce cross-contamination risk without inhibiting Taq polymerase activity

Diagnostic Assay Component

A critical functional dye used in the manufacturing of colorimetric and titrimetric test kits for clinical diagnostics and biochemical research.

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

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

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

Reliable US supply chain

Regulatory compliance

On-time delivery

Technical expert support

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