Methylphenidate-BSA Antigen

Hapten-carrier conjugates are essential when working with low molecular weight drug targets such as methylphenidate (molecular weight approximately 233 Da), which on its own cannot reliably elicit an immune response. By coupling the methylphenidate hapten to bovine serum albumin (BSA), this Antibodies.com antigen becomes a high-molecular-weight immunogen suitable for raising polyclonal or monoclonal anti-drug antibodies in host species. The same conjugate doubles as a coating antigen or competitor in competitive immunoassay workflows used in pharmacokinetic studies, therapeutic drug monitoring research, and forensic stimulant detection development.

Supplied as a liquid antigen-BSA conjugate at 1 mg per vial, the product is intended for research use only. For long-term stability, aliquot upon receipt and store frozen at -20 degrees C, protecting the material from repeated freeze-thaw cycles. The BSA backbone contributes multiple primary amine and carboxyl groups for covalent coupling, supporting reproducible batch-to-batch presentation of the methylphenidate epitope. Researchers building competitive immunoassays or lateral flow assays for stimulant detection rely on well-characterized hapten-protein conjugates like this one to maintain assay calibration and specificity performance.