Syn-Ake 200mg Vial

Description

Listed as a laboratory reference material, the Syn-Ake 200mg vial is a synthetic dipeptide, INCI name Dipeptide Diaminobutyroyl Benzylamide Diacetate, freeze dried and sealed under vacuum. The fill weight is 200 mg of net peptide content. The cake is white to off-white. Not for human or veterinary consumption, and neither a food nor a drug.

The INCI name is longer than the trade name and describes the structure, which is why both are given here. The label on the Syn-Ake 200mg vial carries the compound, the fill weight and the lot number, and that is the extent of it.

What the Syn-Ake 200mg vial is

The table below is the standing description of the Syn-Ake 200mg vial. Measured values live on the lot certificate.

Freeze dried powder, fill weight and price per milligram

The powder is lyophilized, which means the water was removed by sublimation after the solution had been frozen. Peptides tolerate that far better than they tolerate heat. The product is a dry solid holding very little moisture, which is the condition in which an amide bond is least likely to hydrolyse. Cake appearance varies between lots for reasons that have nothing to do with content, so the volume occupied in the glass is not a measurement. Nothing about the Syn-Ake 200mg vial is sold by volume.

How the per milligram figure is worked out

Milligram content is the unit the Syn-Ake 200mg vial is sold in, because it is the only figure that makes two listings comparable. Price per milligram here comes out near $1.04. Work it out the same way every time, price over milligrams, and two listings become comparable even when one is a small vial and the other is not. Compare the Syn-Ake 200mg 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 documentation that comes with the Syn-Ake 200mg vial

Read the certificate from the top and check the identifiers before the numbers. Lot number first, matched against the vial. Date of analysis next, because an old date on a new lot is a sign the document has been recycled. Then purity, then the mass spectrometry comparison, then water content, then the signature and the name of the laboratory. A sheet missing the lot number is not a certificate, it is a leaflet. The certificate issued with the Syn-Ake 200mg vial is specific to the lot and not to the product line.

Assays are run by an outside contract laboratory rather than in house. Independence of that kind matters, and it has a limit: the figure still depends on the sample that was submitted, which is why lot by lot testing rather than periodic testing is the part that matters. Stock is withdrawn from sale where the certificate for the Syn-Ake 200mg vial does not support the figures here. See how to read a certificate of analysis and check the lab before you check the numbers.

Behind the figures

Net peptide content and gross vial weight are not the same figure, and the gap between them is where most of the confusion in this trade lives. Synthetic peptides are commonly isolated as trifluoroacetate salts, and the counter ion has mass. Residual water has mass. Any bulking agent used to form the cake has mass. A certificate that reports net peptide content has already taken those out of the number. The same methods are run on the Syn-Ake 200mg vial as on every other lot on this shelf, and formulae and expected masses for compounds of this class can be checked through PubMed.

Naming, abbreviations and storage

Abbreviations here are inherited rather than designed. They come from the groups that first made a compound, from ingredient registers, from development programmes and from vendors, so two listings can look different and be identical. Where an abbreviation expands into a statement about what a compound does, the abbreviation is what appears here, in the title, the web address, the image description and the text alike. The catalogue name carried by the Syn-Ake 200mg 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 Syn-Ake 200mg vial, since the lot number is the only thing joining the two.

Research use only, stated plainly

Supplied for in vitro and laboratory research by qualified purchasers. It is not a drug, not a dietary supplement, not a cosmetic and not approved for human or animal use. No dosing figure, administration route, timing, injection site or reconstitution procedure appears on this page, and none will be supplied on request. Those omissions are deliberate rather than accidental. No part of this page describes a use for this material in a person or an animal. Bacteriostatic water, sterile diluents and syringes are stocked separately rather than sold as a set with the vial.

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.

The certificate for the lot in stock is linked above, including where a lot did not pass its own stated figures. There is nothing else to read into this listing beyond the figures on it. This item sits on the cosmetic peptide shelf, inside the research peptide catalogue, and every certificate we hold is on the lab results page.