So we got your inquiry about that Astressin B powder — the 95% purity batch we've been running for a while now, it's the same material that labs use for peptide pathway work, and we keep a steady supply at the MOQ of 1 gram which is pretty standard for R&D.
Basically, what you're looking at is a synthesis material intermediate that's been sampled and third-party tested before anything leaves here, with full traceability from raw matrial to final packaing — every parameter gets logged if you ever need to review it.
It's a uniform white powder, stored at 2-8 degrees C like you'd expect, and the shelf life runs about 12 months or so form production date.
Most buyers go with this for pharmaceutical research or biotech lab projects, though we've had academic teams grab it too; just keep in mind it's not suited for any clinical or human use, that's a hard line we don't cross.
One thing we don't always mention upfront is that teh molecular weight is listed as Tirzepatide on some docs — that's actually a typo in old spec sheet we still have, so double-check your own assay if that matters, we usually have stock but confirm lead time for orders over 50 grams.
Anyway, we've been supplying this grade for a while now, and what it does is match standard experimental protocols without those unexpected impurity spikes that mess with test data, so it's better than reagent grade for this kind of work.
95% purity means the product is 95% Astressin B by weight, which is standard for research-grade material. It's perfect for lab R&D, but not intended for human use or pharmaceutical formulations.
Sure, the 1g MOQ is for small-scale tests, and we can handle bulk orders up to kilograms. Lead time depends on quantity—typically 3-7 days for 100g after order confirmation.
Yes, we do. Just contact us freely, and we'll share the COA for your specific batch—it covers purity, appearance, and other specs.
Store it at 2-8°C (refrigerated), in a sealed bottle away from moisture and light. That keeps it stable for the full 12-month shelf life.
Yes, it comes in bottles for transport—usually 1g per bottle. We can do custom packaging like smaller vials or larger containers, just let us know your needs.