Description
The sermorelin 5mg vial is supplied as a reagent: the GHRH 1-29 fragment made synthetically, lyophilized, sealed and assayed by lot. The fill weight is 5 mg of net peptide content. The sequence runs to twenty-nine residues. The powder is white to off-white. Nothing here is addressed to a person, because the material is not for human or veterinary consumption.
The same material is catalogued elsewhere as GRF 1-29. The label on the sermorelin 5mg vial carries the compound, the fill weight and the lot number, and that is the extent of it.
Contents of the sermorelin 5mg vial
What follows is the specification for the sermorelin 5mg vial, with the measured figures on the lot certificate.
| Compound. | Sermorelin |
|---|---|
| Vial content. | 5 mg net peptide content |
| Form. | Lyophilized, white to off-white, sealed under vacuum |
| Sequence length. | Twenty-nine residues |
| Purity. | HPLC, percent of total peak area |
| Identity. | Mass spectrometry against expected mass |
| Water. | Karl Fischer titration, percent by weight |
| Documentation. | Independent certificate of analysis, tied to the lot number |
| Price basis. | About $15.80 per milligram as priced |
| Supplied for. | Laboratory research use only, not for human or veterinary consumption |
Lyophilized powder, and the price per milligram of the sermorelin 5mg vial
Freeze drying is the standard way to supply a peptide, and what it does is simple enough. The frozen solution is held under vacuum until the ice has left as vapour, which strips out the solvent without cooking the molecule. The result is a dry, porous solid with a measured moisture content. Appearance is not a specification. Fill weight, purity and water content are the specifications. Nothing about the sermorelin 5mg vial is sold by volume.
How the per milligram figure is worked out
Milligram content is the unit the sermorelin 5mg vial is sold in, because it is the only figure that makes two listings comparable. Dividing the listed price by the fill weight gives about $15.80 per milligram. That figure is printed under the price for a reason: a bigger vial almost always looks more expensive and is almost always cheaper per milligram, and the headline price hides that completely. Compare the sermorelin 5mg vial on that basis rather than on the price of the glass. The case is made at greater length in why price per milligram beats the price on the bottle.
The certificate of analysis for the sermorelin 5mg vial
The document issued with each lot states the compound, the lot number, the date of analysis, the purity percentage from HPLC, the identity confirmation from mass spectrometry and the water content from titration, and it names the laboratory that produced those results. It is one page. Read all of it, because the figures a vendor chooses to quote are rarely the complete set. The certificate issued with the sermorelin 5mg vial is specific to the lot and not to the product line.
Testing is contracted out to a laboratory with no ownership tie to the seller. It is a weaker guarantee than people sometimes assume and a stronger one than in house assay, for the plain reason that the people producing the number are not the people selling the vial. Stock is withdrawn from sale where the certificate for the sermorelin 5mg vial does not support the figures here. See how to read a certificate of analysis and check the lab before you check the numbers.
What the methods actually measure
Mass spectrometry confirms what the compound is. The sample is ionised and the instrument measures mass to charge, which is then checked against the expected value for the sequence. Purity and identity are different properties: chromatography says how much of the material is the main component, and the spectrum says what that component is. Both appear on the certificate. The same methods are run on the sermorelin 5mg vial as on every other lot on this shelf, and formulae and expected masses for compounds of this class can be checked through the European Medicines Agency.
Names, abbreviations and how to keep the vial
Nomenclature in this field is a mess. Laboratory codes, INCI names assigned for cosmetic labelling, nonproprietary names and supplier catalogue names all circulate at once, and one molecule can appear in four catalogues under four names. GHRH is left as four letters, because the expanded form of the abbreviation is a description of an action. The catalogue name carried by this vial is the one the trade uses, and a trade name is not an identifier.
Sealed, cold, dark and dry. Short term storage at refrigerator temperature and long term storage at minus 20 degrees Celsius or colder are the standard conditions for lyophilized peptide material of this kind. Keep the certificate with the vial, since the lot number is the only thing joining the two.
What this listing refuses to say
This is a laboratory reference material. It is not for human or veterinary consumption, it is not a food and it is not a drug. There is no dose on this page, no timing, no route, no site and no reconstitution method, and asking for any of them will not produce them. Bacteriostatic water, diluents and syringes are stocked separately and are not sold as a set with this item. No part of this page describes a use for this material in a person or an animal.
Two things are true at once. This is sold as a laboratory reference material, and that sentence on its own settles nothing, because a page that describes effects, timing or quantities for a person is describing a use whatever the footer says. See research use only is not a legal strategy.
Withdrawn lots stay published alongside the rest rather than quietly disappearing. The page is a specification, and the specification is all of it. This item sits on the secretagogue shelf, inside the research peptide catalogue, and every certificate we hold is on the lab results page.
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