The price comparison section of Amino Axiom shows live per-compound price tables across every tracked vendor. Pick a compound and the page lists each vendor's offered sizes and prices side by side. Amino Axiom is a free research information platform, and this table is one of its tracking tools alongside the compound library, vendor directory, and compare tool.
This article reads the tables from a quality-standards perspective. A price table is easy to read as a ranking. A quality-focused reader should read it as a set of data points whose comparability has to be established first. The tool shows prices. It does not show purity, identity, or documentation, and nothing here describes use of any compound.
Why is a price spread not a quality signal?
Two listings for the same compound name can describe materially different products. The table cannot tell a reader which, because the differences are in documentation and analytics that never reach a price field. Variables that sit underneath a single number include:
Stated purity and the method used to establish it
Whether a batch-specific Certificate of Analysis is provided
Whether identity is confirmed by mass spectrometry
Salt or counterion form, which changes the mass per vial
Fill amount and how it was verified
Storage and shipping conditions
A low price with thin documentation and a higher price with full batch records are not the same item at different prices. They are different offers, and the table only shows one of their attributes.
How should a researcher normalize a price before comparing?
The first step is to compare like with like. Vial sizes differ between vendors, so a raw price per vial is misleading. Dividing by the listed amount gives a per-milligram figure, and that is the number worth comparing, as long as the stated amount is trustworthy.
That last condition is where quality enters. A per-milligram figure assumes the vial contains what the label says and that the material is the compound named. If a batch is under-filled or carries a high proportion of counterion, the real cost per unit of target material is higher than the table suggests. A price per milligram of label claim is only meaningful when paired with documentation that supports the claim.
What does a worked example look like?
Take Selank. Black Series Lab catalogs it with CAS 129954-34-3, formula C33H57N9O15, and a molecular weight of 751.86 g/mol. When reading a Selank table, a reviewer can first confirm that each vendor's listing names the same compound and, where a vendor publishes identifiers, that those match the catalog values above. Listings that publish no identifiers at all are harder to evaluate and should be marked as incomplete rather than assumed equivalent.
A second example is TB500, catalogued at CAS 77591-33-4, formula C212H350N56O78S, and a molecular weight of 4963.5 g/mol. At that size the molecule is much larger than a short peptide, and some commercial listings refer to a shorter fragment under a similar name. A price spread across TB500 listings may partly reflect that the products are not the same molecule. Checking the listed molecular weight is a quick way to see whether the entries even belong in the same comparison.
A third is Epitalon, catalogued at CAS 307297-39-8, formula C14H22N4O9, and a molecular weight of 390.35 g/mol. As a tetrapeptide it is small, so identity is simple to confirm by mass. In a table like this, the useful question is not which listing is cheapest but which listings publish enough to be checked at all.
What should be recorded alongside a price?
A price in isolation is hard to audit, so a record should pair each figure with the evidence that makes it comparable. A quality-minded record keeps a few fields next to every price, and the numbered list below is a simple order of work for a researcher reading one table, step by step:
The date the price was read, since the tables are live and move.
The vendor and exact product name as listed.
The listed amount and the derived per-milligram figure.
Whether a batch Certificate of Analysis was available and for which lot.
The identifiers the vendor published, compared against a reference.
With those fields, a later reviewer can tell why one listing was chosen over another without relying on memory. Without them, the price is just a number.
How do the worked examples compare side by side?
The three compounds above can be set next to each other using only the Black Series Lab catalog values. The table shows why molecular weight and CAS number are the fastest first filter when reading a price table, because a listing that disagrees with the reference on either field may not be the same product.
A listing that omits these fields is not necessarily wrong, but it cannot be placed in the same comparison until a supplier supplies them in writing.
How do price tables fit with documentation review?
The tables are a starting point for deciding which suppliers to evaluate further. They are not an endpoint. After narrowing the list, the work shifts to documentation: requesting batch records, reading the chromatogram and mass trace, and checking lot numbers against the vial. Black Series Lab's guides to COA red flags and peptide sourcing quality tiers describe what to look for at that stage.
One practical habit is to treat an unusually low price as a prompt for more scrutiny rather than less. It may be fully explained by a promotion or scale, but the explanation should come from the supplier in writing, not from the researcher's assumption.
What are the limits of a price table?
A price table is a snapshot of listings, and snapshots have limits:
It reflects listed prices at the time of the last update, not necessarily what is currently in stock.
Shipping, handling, and any regional fees may not be included in the figure shown.
It carries no information about batch quality, even when a listing looks complete.
A vendor appearing in the table is not a statement about that vendor's analytical standards.
The researcher should confirm current terms and documentation directly with a supplier before relying on any figure.
How does this connect to Black Series Lab's catalog?
Black Series Lab lists its identifiers, purity specification, and storage condition on each compound page and documents every batch with a Certificate of Analysis, so that a listing can be compared on documentation as well as price. The full list is on the all compounds page. A researcher comparing across vendors can use the same fields as a checklist for any other supplier. Where a listing and its batch records disagree, the batch records are the controlling document.
This content is for informational and research purposes only. Black Series Lab products are research chemicals intended for laboratory and scientific research purposes only. They are not drugs, supplements, or food, and are not intended to diagnose, treat, cure, or prevent any disease. Amino Axiom is an independent research information platform. Researchers are responsible for compliance with all applicable local, state, and federal regulations.
Reference
Common questions
No. Axiom's price comparison shows live per-compound prices across tracked vendors, and a price field carries no information about purity, identity, or batch documentation. Quality has to be assessed separately, from Certificates of Analysis, mass-spectrometry results, and published identifiers, before any listing is treated as comparable to another. For research purposes only.
Compare price per milligram, not price per vial, because vial sizes differ between vendors. Divide each listed price by its stated amount, then check that the product is the same molecule, the same salt form, and backed by batch documentation. A per-milligram figure is only meaningful when the label claim is supported by evidence. For research purposes only.
Listings sharing a compound name can describe different products, since differences in purity, salt form, fill verification, and shipping conditions never appear in a price field. Some listings also refer to shorter fragments under similar names. A price spread may therefore reflect real product differences rather than competition between identical items. For research purposes only.
Record the date the price was read, the vendor and exact product name, the listed amount with the derived per-milligram figure, whether a lot-specific Certificate of Analysis was available, and the identifiers the vendor published. With those fields a later reviewer can reconstruct why a listing was chosen. For research purposes only.
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