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A researcher running a sirtuin activation assay would reconstitute this in endotoxin-free water at the desired molarity, usually 10-50 mM depending on the protocol, and it's critical that you keep it on ice during handling to avoid premature degradation.
We've been supplying this NAD+ as a freeze-dried white powder with HPLC-verified purity at ≥99%, and the CAS 53-84-9 matches the beta-nicotinamide adenine dinucleotide form that most labs expect for cofactor work.
it come in foil bags at 500mg or 1000mg, but our company can do custom gram sizes if your MOQ hits 1 gram—just confirm lead time if you need something off standerd list.
Storage is pretty straightforward but unforgiving: -20°C in a dry enviornment, and we've seen it stay stable for 24 months or so if you don't open the bag more than a few times.
What it basically does is act as an electron carrier in redox reactions, so you'll want to check your buffer pH—pH 7.4 is typical—since teh pyridine ring is sensitive to extreme conditions.
One thing we don't recommend is using this for cell culture work without testing it in your specific line first, because even at 99% purity, residual moisture or buffer incompatibility can cause variability.
