Description

Wst-4 CAS NO 178952-54-7 is a high-purity chemical reagent widely recognized for its utility in advanced biochemical and pharmaceutical research. This compound serves as a critical reagent in enzymatic assays, particularly for the sensitive detection and quantification of cellular activity. It is essential for researchers and manufacturers in the fields of drug discovery, molecular biology, and diagnostic kit development. Our product is supplied with guaranteed consistency and reliability to support your most demanding applications.

Application

• Biochemical Research: Used as a key substrate in colorimetric and fluorometric assays for measuring enzyme activity, such as dehydrogenases.
• Pharmaceutical Development: Employed in high-throughput screening (HTS) platforms to identify and characterize potential drug candidates.
• Diagnostic Manufacturing: A vital component in the formulation of diagnostic reagents and test kits for clinical and research laboratories.
• Cell Biology Studies: Applied in assays to monitor cell viability, proliferation, and cytotoxicity in vitro.
• Academic Research: Supports fundamental research in universities and institutes focusing on metabolic pathways and biomarker discovery.

Basic Information

Product Name	Wst-4
CAS No.	178952-54-7
Molecular Formula	C21H17N4NaO11S3
Molecular Weight	636.56 g/mol
Synonyms	WST-4; WST-4 Sodium Salt; 2-(4-Iodophenyl)-3-(4-nitrophenyl)-5-(2,4-disulfophenyl)-2H-tetrazolium, monosodium salt; 2-(4-Iodophenyl)-3-(4-nitrophenyl)-5-(2,4-disulfophenyl)-2H-tetrazolium sodium salt; CCK-8 Alternative; Tetrazolium Salt WST-4; Water-Soluble Tetrazolium Salt 4
EINECS	Contact for details

Quality Control

Every batch of Wst-4 is manufactured and tested under strict quality management systems. We provide comprehensive analytical data to ensure the product meets the high standards required for research and industrial applications. A detailed Certificate of Analysis (COA) is supplied with each shipment, confirming parameters such as purity, identity, and performance in standard assay systems.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C. This product is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to moisture, heat, or light should be avoided to maintain stability and performance.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (HPLC/IR)	Conforms to reference standard
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 3.0%
Absorbance (450 nm)	Within specified range
Solubility (in Water)	Clear, yellow solution
Heavy Metals	≤ 20 ppm
Biological Activity (Assay)	Conforms to reference

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.