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99% purity is what we hold to, verified by HPLC and mass spec, but what really matters is consistency across lots—you’re not chasing variability when you’re running or metabolic assays, and we’ve had labs come back after three orders saying the lyophilized cake looked identical each time.
We usually stock the standard 10-vial box format, but if you need custom vial sizes or a specific concentration for reconstitution, that’s pretty much what we do on teh regular—just tell us the fill volume or the labeling requrement, and we’ll adjust the synthesis batch accordingly (lead time is roughly 2-3 weeks for non-standdard runs).
Storage is critical here: -20°C in a dry environment, and we’ve seen degradation happen fast if someone leaves it at room temp for more than a day or so—the molecular weight is 4113.6 g/mol, so it’s a big peptide, and it’s not as stable as some smaller ones, which is a limitation you should factor in if you’re planning long-term studies.
And the CAS number is 946870-92-4, but honestly, most buyers go with the 5mg or 10mg vial size depending on their dosing schedule—we don’t push the bulk synthesis unless you’re ordering 50 vials or more, and then our company can tighten the tolerance on the fill weight to within 0.1 mg.
It’s not suited for anything beyond research use—pharmaceutical grade means the raw material is clean, but we don’t validate for in vivo work or human application, so if you’re running cell-based assays or receptor binding studies, it’s fine, but don’t expect it to pass a clinical trial release spec.
One thing you might not think to ask: the white powder can be slightly hygroscopic, so we recommend opening the vial in low-humidity environment (below 30% RH) and reconstituting immediately with sterile water or a suitable buffer—otherwise, you’ll get clumping that affects solubility.
