This is called penile injection therapy
Each lot is a synthetic pentadecapeptide corresponding to the 15-residue sequence Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val (GEPPPGKPADDAGLV), assembled by solid-phase peptide synthesis and purified to not less than 98% by reversed-phase HPLC, with lot-specific results documented on the Certificate of Analysis available on request
This creates a concentration of 500mcg/mL, which makes measuring common research doses (like 25mcg or 50mcg) very straightforward using a standard insulin syringe
Bibcode:2004NYASA1033...30R
Biogenic Foods Description Description Also known as: Thymosin Beta-4 Acetate CAS Number: 77591-33-4 Molecular Formula: C212H350N56O78S Molecular Weight: ~4964.4 g/mol Form: Lyophilized Powder Quantity: 10mg Purity: 98% (HPLC Verified) Product Overview: TB-500 is the synthetic version of a naturally occurring peptide called Thymosin Beta-4 , found in nearly all human and animal cells
Considering this, the increased sphingosine levels observed in the barren urchins in the present study is likely an adaptive mechanism to low-nutrient conditions providing a means to instantiate apoptosis if starvation stress is prolonged