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Testagen

Lys-Glu-Asp-Gly

A tetrapeptide from the bioregulator series.

Vial size

BioregulatorsHPLC · MS · Endotoxin

Testagen 20 mg research vial

What it is

Testagen is the tetrapeptide Lys-Glu-Asp-Gly. The bioregulator literature links it to testicular tissue.

What researchers study

  • Studied in cell models, mostly by the developing group.

Specifications

SequenceKEDG
Molecular formulaC17H29N5O9
Molecular weight447.4 g/mol
FormLyophilized powder
Vial sizes20 mg
StorageUnopened: 2 to 8 °C, away from light

How each lot is tested

Samples from every lot go to an independent, ISO/IEC 17025 accredited lab. Its report covers three tests:

  • Purity by reversed-phase HPLC: the main peak's share of the total peak area.
  • Identity by mass spectrometry: the observed mass should match the expected 447.4 g/mol.
  • Endotoxin, measured for every lot.

The lot number on your vial is the number on its report. How to check a certificate of analysis walks through what to look for.

The amount on the label is the weight of the powder. Besides the peptide it includes counter-ions and some water; Purity vs. peptide content explains the difference.

Storage and handling

Store unopened vials at 2 to 8 °C, away from light, as printed on the label. Let a cold vial reach room temperature before you open it, so moisture doesn't condense on the powder. More bench habits are in Handling.

For laboratory research use only. Not for human or veterinary use. This page describes the compound and published research on it. It is not a recommendation for any use.