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You're sourcing TB-500 and purity is the only thing that matters when you're working with a peptide this large—CAS 107761-42-2, molecular weight 4514.04 g/mol, and that C203H311N55O60S1 formula means any impurity throws off your reconstitution ratios.
We hold it at 99% by HPLC, pharmacy grade, and it's stored at -20°C form moment it's lyophilized; the solubility is tricky—pH above 9 or DMSO is your only real option for getting it into solution cleanly.
Most buyers go with the 1g per vial format because it minimizes freeze-thaw cycles, and we've seen labs running actin regulation studies prefer this over smaller aliquots—basically, the less you handle it, the better your results.
It's not suited for anything below pH 7 or aqueous buffers without a base, so if your protocol calls for neutral saline, you'll need to adjust first or you're looking at precipitation and wasted materail.
We usually have stock on hand, but confirm lead time if you need more than 50 vials—MOQ is 10 vials, and we'll send a COA with every batch, though you'll have to request teh full HPLC trace separately (it's about 2 pages of data).
We don't have a strict MOQ for this item — you can order as little as 1 gram, which is one vial. For larger quantities, just let us know and we can adjust pricing.
Orders usually ship within 1-3 business days after payment confirmation. If you need it faster, we can arrange express shipping at an extra cost.
Yes, we include a COA with every batch that confirms the 99% purity and other specs like HPLC results. Just ask for it when you place your order.
Yes, it's best to keep it at -20°C for long-term stability. If you're using it soon, short-term storage at 2-8°C is okay, but avoid room temperature.
We can customize packaging for larger orders, but the standard is 1g per vial. For custom sizes, please reach out to our sales team for details and pricing.
