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So you're already working with melanocortin receptor agonists in your lab and you've probably run into solubility issues with some of the earlier batches—this one's a that reconstitutes cleanly in bacteriostatic water or saline, give or take a few minutes of gentle swirling, and we've been moving it for years to both UK and EU researchers who need something consistent for their in vitro work.
The CAS is 121062-08-6, molecular formula C50H69N15O9, and what it does is act as a non-selective agonist at MC1R and MC3R through MC5R, with a reported binding affinity in the low nanomolar range—usually around 0.5 nM for MC1R depending on assay conditions, but we'll send the COA form HPLC analysis if you need the exact batch data.
99% purity by HPLC, and that number actually matters here because any lower and you start seeing off-target activation or weird aggregation in solution, especially if you're cycling your reconstituted vials between the fridge and room temperture—store it dry and dark at 0-4°C for short term or -20°C for long term, and the shelf life is over 2 years if you do it right, but we usually have stock so confirm lead time if you need fresh lots.
Each vial contains 10mg of the lyophilized peptide as a white powder, and they come with a MOQ of 10 vials—so you get a full box or go home, basically, and the packging is sealed in an argon atmosphere to minimize oxidation during transit, which is one of those details you don't think to ask but it saves a lot of headache.
It's industrial grade, not pharmaceutical, so you shouldn't use it for anything beyond research—no in vivo work unless you've got your own purification setup, and teh 10mg vial size is actually easier to handle than the 5mg vials from other suppliers because you can reconstitute to a decent working concentration without dealing with microgram-level transfers.
One thing that catches new buyers off guard: the white powder can look slightly off-white under certain lighting conditions, that's normal for lyophilized peptides with this sequence, and it doesn't affect the mass spec results—we've seen people return batches because they expected a brilliant white, but it's just the residual moisture content being slightly higher than ideal.
Our MOQ is 10 vials, so you can start with as little as one box.
Yes, we include a COA with every batch to confirm the 99% purity and other specs.
Keep them dry and dark. For short term, 0-4°C works, but for storage beyond a few weeks, -20°C is best.
We can customize packaging for wholesale orders—just let us know your preferred vial size or box quantity.
We ship worldwide. Lead time is usually 3-7 business days after order confirmation, depending on your location.
