Description

n-(m-Peg4)-N'-(Acid-Peg3)-Benzothiazole Cy5 is a specialized bifunctional PEG linker dye conjugate, integrating a benzothiazole fluorophore with a cyanine 5 (Cy5) chromophore. This compound is engineered to provide a versatile platform for bioconjugation, offering a hydrophilic polyethylene glycol (PEG) spacer to enhance solubility and reduce aggregation in biological systems. It is primarily utilized by researchers and manufacturers in the fields of biopharmaceutical development, diagnostic assay design, and advanced materials science for labeling, imaging, and targeted delivery applications.

Application

• Fluorescent Labeling of Biomolecules: Conjugation to antibodies, proteins, peptides, and oligonucleotides for fluorescence microscopy, flow cytometry, and in vivo imaging.
• Development of Diagnostic Probes: Creation of sensitive and specific detection reagents for ELISA, lateral flow assays, and other clinical diagnostics.
• Drug Delivery System Conjugation: Functionalization of nanoparticles, liposomes, and polymer-drug conjugates to enable traceable targeted delivery.
• Bioorthogonal Chemistry: Serving as a functional handle in click chemistry reactions for site-specific labeling in complex biological environments.
• Materials Science Research: Incorporation into smart polymers and hydrogels to create photoresponsive or traceable functional materials.
• Pharmacokinetic and Biodistribution Studies: Tracking the absorption, distribution, metabolism, and excretion (ADME) of novel therapeutic entities.

Basic Information

Item	Detail
Product Name	n-(m-Peg4)-N'-(Acid-Peg3)-Benzothiazole Cy5
CAS No.	2107273-80-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Benzothiazole-PEG4-PEG3-acid-Cy5; Cy5-PEG7-Benzothiazole derivative; m-PEG4-NH-PEG3-COOH-Benzothiazole-Cyanine5; Acid-PEG3-PEG4-Benzothiazole Cy5; Bifunctional Cy5-PEG linker; Benzothiazole Cy5 PEG conjugate; Fluorescent PEG crosslinker; 2107273-80-1
EINECS	Contact for details

Quality Control

Our n-(m-Peg4)-N'-(Acid-Peg3)-Benzothiazole Cy5 is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical characterization to ensure identity, purity, and performance consistency. Certificates of Analysis (COA) detailing specifications such as HPLC purity, absorbance/fluorescence profiles, and functional group integrity are available upon request, supporting compliance in regulated research and development environments.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below under desiccant. This compound is hygroscopic (moisture-sensitive) and light-sensitive. Allow the vial to warm to room temperature in a desiccator before opening to minimize moisture absorption. For long-term storage, keep under an inert atmosphere.

Specification

Item	Specification
Appearance	Dark blue to purple solid
Identification (HPLC/MS)	Conforms
Purity (HPLC)	≥ 95%
Absorption (λmax)	~649 nm
Emission (λmax)	~670 nm
Extinction Coefficient (ε)	Contact for details
Functional Group Assay	Contact for details
Water Content (KF)	≤ 1.0%

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