NAD+ purity testing confirms that a batch is the intact dinucleotide at high purity, free of degradation products.
HPLC for purity
High-performance liquid chromatography separates NAD+ from related nucleotides and degradation products, reporting a purity percentage — background in understanding HPLC purity.
Confirming identity
Because NAD+ is a defined small molecule (structure and synthesis) rather than a peptide, identity is confirmed against its known mass and spectral profile; the general logic of pairing separation with mass confirmation is in HPLC vs. mass spectrometry.
The certificate of analysis
Results are compiled into a batch certificate of analysis, with third-party testing for independent verification.
Product page: NAD+ research vials.
Research Use Only. Supplied strictly for laboratory research and development — not for human or veterinary use, consumption, or any therapeutic or diagnostic purpose. This article is research education, not usage guidance.