We've actually been moving quite a bit of this lately, and the reason is simple—most buyers come to us after struggling with lower-grade alternatives that just don't hold up in metabolic or muscle-development work, and what they find here is a 99%+ purity they can actually trust batch to batch, with the CAS 53-84-9 matching what you'd expect from a supplier.
Solubility runs about 50 mg per mL in water, which is better than a lot of the stuff we tested internally, though staying at -20°C makes a real difference over time because room temperture storage can degrade it pretty much overnight; the powder itself is white, crystalline, fairly fine, and when you run HPLC the NMT numbers usually fall inside acceptable ranges without any surprises.
Keep in mind it's not ideal for in-vivo work right out of the box unless you've validated your own protocols, but for cellular assays studying metabolism or muscle cell differentiation, we've seen it outperform those commercial mixes that are often diluted with fillers you don't want anyway; researchers doing generally prefer it to the NADH variants because the oxidation state stays more predictable here.
We typically customize packaging sizes if you need 1g, 5g, or full kilos—the 5L drum format is easier to handle for labs running repeated assays, and we do offer OEM labeling but only on orders over 100 grams or so; just give us the head count and any TDS or SDS requirment upfront because turnaround floats between roughly 2 weeks and maybe 30 days depending on whether we're running a full production batch.
Shippng is where most of the headaches disappear with us, because we've sorted cold-chain logistics years ago—dry ice packs, insulated boxes, and a courier who actually understands what -20°C means; one thing that catches new buyers off guard is how bulky the shipper gets given density weighs 200 to 300 kg per cubic meter, but that's just how you keep decomp under 140-142°C where it would otherwise break down into useless somethingorother.
Also, and I don't say this lightly, we had one client lose a full study because their lab's freezer fluctuated above -15°C for three days; so I'd suggest dedicated storage even though the paperwork says -20°C because real-world conditions aren't always ideal.