Account
Inquiry
So a buyer's custoemr running an IGF-1 LR3 study will reconstitute this powder and dose it carefully—they're not just taking it off the shelf, it's for controlled lab work with animal models or cell assays. Which means batch consistency and knowing your COA is clean matter more than the sales sheet. We usually have stock for the 1mg*10 vial packs, but confirm lead time if you need more than 50 units or so. 2. Purity is 99% according to HPLC data we get, which is better than reagent grade for this type of peptide work since even a 1% impurity can throw off in a sensitive assay. The CAS is 946870-92-4, and it's a white to off-white powder—nothing unusual there, but we store it at 2-8°C and protect form light, so plan your receiving accordingly if you're not turning it around fast. 3. We do a retest policy within 12 months if stored properly—basically if your fridge temps have been unreliable, we'll recheck it for free, but it's not guaranteed for mishandling. The 2-year shelf life holds up in most cases, but we've seen variance with humidity exposure, something lab managers don't always think about until they open a vial mid-study. 4. It's pharmaceutical grade, but let's be real—that just means the suppiler runs GMP-style protocols and provides a full TDS and SDS on request. We batch test every production run, roughly 500kg cycles, and the COA covers identity, purity, and residual solvents, though we don't always list endotoxin levels unless you ask. 5. This is really for academic or early-phase work, not for clinical prep or anything you'd push to human trials without far more stringent specs. Most buyers go with IGF-1 LR3 over other long R3 analogs for the tight tolerance on MW (roughly 9.1 kDa) and the fact it's less prone to dimerization than some cheaper options. Anyway, it's a solid materail for what it is.
