Ordering Pinealon for research

Laboratories that study short peptides may want Pinealon as a test compound or a reference material. It is usually supplied as a white, freeze-dried powder. Because the molecule is so small, simple mistakes such as a swapped amino acid are hard to spot without proper analysis, so documentation matters.

Points to confirm before placing an order:

• Sequence: the certificate should state Glu-Asp-Arg (EDR) in that exact order, since other orders of the same three amino acids are different compounds.
• Identity: a mass spectrometry result showing the expected molecular mass for this batch.
• Purity: an HPLC result for the specific batch, with the method named, rather than a general figure for the product.
• Salt form and net content: whether the powder is an acetate or trifluoroacetate salt, and how much of the weight is actual peptide.
• Batch match: the batch number on the certificate should match the one on the vial.
• Storage and labelling: sealed, kept cold and dry, protected from light and moisture, and clearly marked for research use only.

Many labs also keep a small retained sample of each batch, so that results can be rechecked if something looks unusual later.