Description

Enterotoxin Stp (E Coli) CAS NO 115474-04-9 is a purified, biologically active protein toxin produced by specific strains of *Escherichia coli*. This compound is of critical importance for research and diagnostic applications, particularly in the study of bacterial pathogenesis, host immune responses, and food safety testing. It is primarily needed by biotechnology firms, academic research institutions, and pharmaceutical companies engaged in vaccine development, toxin-antitoxin research, and the production of diagnostic assay controls.

Application

• Biomedical Research: Used as a key reagent in studies of bacterial enterotoxin mechanisms, epithelial cell interactions, and intestinal pathophysiology.
• Diagnostic Kit Development: Serves as a positive control or calibration standard in immunoassays (ELISA, lateral flow) for detecting pathogenic *E. coli* strains.
• Vaccine & Antitoxin Research: Employed in the development and efficacy testing of vaccines and therapeutic antibodies targeting enterotoxigenic *E. coli* (ETEC).
• Food Safety Testing: Utilized in laboratory methods to screen for enterotoxin-producing bacteria in food and water samples.
• Cell Signaling Studies: Applied in research to investigate G-protein coupled receptor pathways and cellular second messenger systems activated by bacterial toxins.
• Quality Control in Biologics: Acts as a reference material in the quality control of related pharmaceutical products and diagnostic reagents.

Basic Information

Product Name	Enterotoxin Stp (E Coli)
CAS No.	115474-04-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	E. coli Heat-Stable Enterotoxin STp; STp Enterotoxin; STp Toxin; Heat-Stable Toxin STp; STp; STp Peptide; Enterotoxigenic E. coli STp; ETEC STp
EINECS	Contact for details

Quality Control

Our Enterotoxin Stp (E Coli) is produced and handled under stringent quality management protocols. Each batch undergoes rigorous analytical testing, including purity assessment by HPLC and functional activity assays, to ensure consistency and biological relevance. Certificates of Analysis (COA) detailing purity, potency, and endotoxin levels are available upon request to support your research and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below. This product is hygroscopic (moisture-sensitive). For long-term storage, it is recommended to keep the material desiccated. Avoid repeated freeze-thaw cycles.

Specification

Item	Specification
Appearance	White to off-white lyophilized powder
Identification (HPLC/MS)	Conforms to reference standard
Purity (HPLC)	≥ 95%
Biological Activity	Determined by cell-based assay or ELISA
Endotoxin Level	< 1.0 EU/μg
Solubility	Soluble in aqueous buffers

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