Description
The Follistatin 344 peptide vial from Umbrella Labs comes as freeze-dried powder in a sealed vial. Each batch is tested by LC-MS to 99% purity or higher. It’s $119.99. It’s sold for laboratory research only.
Browse the rest of our peptide vials for related compounds.
What is Follistatin 344?
Follistatin is a glycoprotein that binds and blocks activin and myostatin. FST-344 is the full precursor form, which is processed into FST-315.
It’s a key tool in myostatin research.
Follistatin 344 peptide vial specifications
- Compound: Follistatin 344 (Activin-Binding Protein, FSH-Suppressing Protein, FST)
- CAS number: 80449-31-6
- Molecular formula: C1350H2153N405O433S39
- Molecular weight: 3780.0
- Purity: 99% or higher, tested by LC-MS
- Amount: 1mg
- Form: Lyophilized (freeze-dried) powder in a sealed vial
- Storage: Keep it in the fridge at 2 to 8°C and don’t freeze it
- Use: laboratory research only, not for human or veterinary use
Research on Follistatin 344
Lee and McPherron reported in PNAS (2001) that follistatin overexpression in mice produced large increases in muscle mass.
Gene therapy studies with FST-344 followed in primates.
Search PubMed for the full studies. We stick to what’s been published.
Reconstituting Follistatin 344 for research
Follistatin 344 arrives as a freeze-dried (lyophilized) powder in a sealed glass vial. It has to be dissolved before use, and for most peptides that means bacteriostatic water. Let the water run slowly down the inside wall of the vial, then swirl gently until the solution is clear. Don’t shake it.
The amount of water you add sets the concentration. For example, adding 2mL of bacteriostatic water to a 1mg vial gives 0.5mg per mL. Write the volume and the date on the label so anyone picking up the vial later knows what’s in it.
We sell bacteriostatic water in 30mL vials, and acetic acid solution for the few peptides that don’t dissolve well in water.
How we test Follistatin 344
We test each batch of Follistatin 344 by LC-MS, which pairs liquid chromatography with mass spectrometry. The chromatography splits the sample into its components and the mass spectrometer identifies them, which tells you both identity and purity. This batch came in at 99% or higher.
Small differences between batches are normal, so write the batch number from the label into your records. If something looks wrong when your order arrives, like discoloured powder or a cloudy solution, set it aside and don’t use it.
Storage and handling
Keep it in the fridge at 2 to 8°C and don’t freeze it. Once mixed, keep the vial in the fridge and use it within a few weeks. Unmixed vials keep much longer, so only reconstitute what you need. Label anything you decant with the compound, amount and date, and keep it out of reach of children and pets.
Common questions about the Follistatin 344 peptide vial
Does Follistatin 344 come with water to mix it?
No. The vial holds only the freeze-dried powder. Add bacteriostatic water to your order if you don’t already have some.
How long does mixed Follistatin 344 last?
Kept in the fridge, most reconstituted peptides are good for a few weeks. Unmixed vials last much longer, especially in the fridge or freezer.
Is the Follistatin 344 peptide vial in stock?
Yes. Every option on this page is in stock and ready to ship.
Related research peptides
Similar products in this format include FOXO4-DRI peptide vial, Follistatin 315 peptide vial, Gepon peptide vial and FGL peptide vial. Our main Research Peptides page lists everything in the category.
Buy Follistatin 344 peptide vial from Umbrella Labs
Ordering takes a minute. Add it to your cart and check out. The Follistatin 344 peptide vial is in stock and ready to ship. Need other compounds for the same study? Browse peptide vials or our lab supplies.
Sold for laboratory research use only. It isn’t for human or veterinary use, and it isn’t a food, drug or cosmetic.
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