Xcel Semaglutide 99% Purity CAS 2381089-83-2 for Research Use Only

You were asking about batch consistency and testing—we ran this batch at 99.1% by HPLC, and COA from this lot shows no single impurity above 0.15%, which is tighter than reagent grade for this sort of research.

The white crystalline powder ships as a lyophilized salt form, typically 10mg or 50mg per vial with a screw-cap, and we usually stock both sizes but the 100mg is sometimes backordered by a week or so—just confirm lead time if you need bulk quickly.

Basically, it dissolves easily in water or buffers at room temp, but what it doesn't do well is tolerate prolonged exposure above 8°C, because the peptide backbone degrades faster than most expect after 30 days or so at ambient.

We've had a few buyers who run stability studies at 2-8°C report that it holds potency for roughly 12 months in sealed vials, and teh retest policy on this lot is 18 months form manufactyre—though we don't have data beyond that to back extrapolated shelf life claims.

2381089-83-2 is the CAS, 4113.6 g/mol is the MW, and for GLP-1 receptor work the batch-to-batch variation is under 2% in our internal assays—one lab I spoke with uses 5mg in their usual dose-response setup, not the 10mg.