Description

Freund's Complete Adjuvant (FCA) is a powerful, water-in-oil emulsion immunopotentiator used to enhance the immune response to co-administered antigens. Its core value proposition lies in its ability to stimulate a robust, long-lasting humoral and cell-mediated immune response, which is critical for generating high-titer antibodies in research and diagnostic applications. This product is essential for immunologists, vaccine researchers, and biopharmaceutical developers working in preclinical studies, particularly for challenging antigens that elicit weak immune responses on their own.

Application

• Preclinical Antibody Production: Primarily used to boost the immune response in laboratory animals (e.g., rabbits, mice, goats) for generating high-affinity polyclonal antibodies.
• Vaccine Adjuvant Research: Serves as a gold-standard positive control in the development and efficacy testing of novel vaccine adjuvants and formulations.
• Immunology Studies: Employed in basic research to investigate mechanisms of cell-mediated immunity, delayed-type hypersensitivity, and autoimmune disease models.
• Antigen Characterization: Used to enhance immune recognition of weak or small peptide antigens, facilitating subsequent immunological analysis.
• Diagnostic Reagent Development: Aids in producing sensitive and specific antisera required for immunoassays such as ELISA and Western Blot.

Basic Information

Product Name	Freund's Complete Adjuvant
CAS No.	9007-81-2
Molecular Formula	Complex Mixture
Molecular Weight	N/A (Emulsion)
Synonyms	FCA; Complete Freund's Adjuvant; Freund's Adjuvant, Complete; Mycobacterium butyricum in Mineral Oil Emulsion; Immunologic Adjuvant FCA; CFA; Freund's Complete Adjuvant, Modified; Water-in-Oil Immunologic Adjuvant
EINECS	Contact for details

Quality Control

Our Freund's Complete Adjuvant is manufactured under controlled conditions to ensure batch-to-batch consistency and biological activity. While specific pharmacopeial monographs for adjuvants are limited, production adheres to stringent in-house specifications focused on sterility, emulsion stability, and the potency of the mycobacterial component. A comprehensive Certificate of Analysis (COA) detailing these parameters is provided with each batch to support your research integrity and compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C. Do not freeze. Under these recommended conditions, the product is stable for the duration indicated on the label.

Specification

Item	Specification
Description	White to off-white, viscous water-in-oil emulsion
Identification (Mycobacteria)	Positive
Sterility Test	Sterile
Emulsion Stability	Stable emulsion for specified period
Mycobacterium Concentration	Typically 0.5 - 1.0 mg/mL (M. butyricum or M. tuberculosis H37Ra)
Mineral Oil Component	Light mineral oil, USP grade
Emulsifier	Mannide monooleate

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