Description

Capsular Polysaccharide, Klebsiella K15 CAS NO 133957-16-1 is a high-purity, serotype-specific polysaccharide antigen isolated from the K15 strain of *Klebsiella pneumoniae*. This purified bacterial capsular polysaccharide is essential for the research, development, and production of diagnostic reagents and conjugate vaccines. It is primarily required by biotechnology, pharmaceutical, and in-vitro diagnostic (IVD) companies focused on immunology, infectious disease research, and vaccine formulation.

Application

• Vaccine Development: Critical raw material for the formulation of glycoconjugate vaccines targeting *Klebsiella pneumoniae* infections.
• Diagnostic Reagent Production: Used as a coating antigen or standard in ELISA, latex agglutination, and other immunoassays for serotype-specific antibody detection.
• Immunological Research: Serves as a model antigen for studying host-pathogen interactions, immune response mechanisms, and polysaccharide immunogenicity.
• Quality Control Reference: Acts as a reference standard for the quality control and potency testing of finished vaccine products and diagnostic kits.
• Antibody Production: Employed to immunize animals for the generation of serotype-specific polyclonal or monoclonal antibodies.
• Microbiological Studies: Used in research investigating bacterial virulence, capsule biosynthesis, and antimicrobial resistance mechanisms.

Basic Information

Product Name	Capsular Polysaccharide, Klebsiella K15
CAS No.	133957-16-1
Molecular Formula	(C6H10O5)n
Molecular Weight	High molecular weight polymer (Contact for details)
Synonyms	Klebsiella pneumoniae K15 Capsular Polysaccharide; K15 CPS; Klebsiella K15 Antigen; K15 Polysaccharide; *Klebsiella* Serotype 15 Capsular Antigen; Klebsiella K15 PS; Bacterial Polysaccharide K15; Klebsiella pneumoniae Type 15 Polysaccharide
EINECS	Contact for details

Quality Control

Our Capsular Polysaccharide, Klebsiella K15 is manufactured under strict quality management systems. Each batch is subjected to a comprehensive battery of analytical tests to ensure identity, purity, and consistency, meeting the stringent requirements for biological and pharmaceutical applications. Certificates of Analysis (COA) detailing specifications such as serological identity, nucleic acid/protein content, and molecular size distribution are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store desiccated at -20°C or below for long-term stability. This material is hygroscopic (moisture-sensitive). Allow the vial to equilibrate to room temperature in a desiccator before opening to prevent condensation and moisture uptake.

Specification

Item	Specification
Appearance	White to off-white fibrous solid or powder
Identification (Serology)	Positive for K15 specific antiserum
Identification (NMR/IR)	Conforms to reference spectrum
Assay (Dry weight basis)	≥ 95%
Protein Content	≤ 1.0%
Nucleic Acid Content	≤ 1.0%
Endotoxin	Contact for details
Moisture Content (KF)	≤ 5.0%
Molecular Size Distribution (SEC-HPLC)	Reported on COA

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