It's a lyophilized powder, CAS 910463-68-2, and we're seeing steady demand from UK labs for research-grade semaglutide — purity runs ≥99% by HPLC, which matters for consistent peptide reconstitution.
Actually, we've had a few buyers ask about batch-to-batch variability, and what we typically do is hold a reserve sample form each production run for 6 months or so.

Storage is straightforward: keep it dry and dark at 0-4°C short-term, or -20°C if you're holding it longer than a few weeks, and it's stable over 2 years that way.

4, our company supply in custom vial sizes, usually 5mg or 10mg depending on your protocol, and MOQ is flexible for bulk orders.

One thing you probably don't need it for is formulation work — it's research grade, not pharmaceutical, so solubility profiles can vary a bit between batches.
For UK dilevery, we typically ship within 48 hours of order confirmation, though customs clearance can add 3-5 days, so plan accordingly.