Catalog SKUs vs research analogues — identity on the label
AOD-9604 catalog vial
This storefront lists a fixed set of research reagents. A name that circulates in the wider research literature is not automatically a SKU here. Identity notes on the blog exist so purchasing teams can tell catalog cards from analogues we do not stock.
Melanotan II is a cyclic α-MSH analogue (commonly described as Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2, CAS 121062-08-6 in public listings). It is not listed in this catalog. It is also not KPV (α-MSH 11–13). See Melanotan II is a cyclic α-MSH analogue, not a catalog SKU and KPV is α-MSH 11–13.
The same rule applies to other nicknames that collide with listed fragments: CJC-1295 with/without DAC is not a catalog SKU here; TB-500 on this site is the Ac-LKKTETQ fragment listing, not intact thymosin β4; named blends without component CAS are not single substances. Those boundaries are on the identity posts linked from the blog index.
Why omit some analogues? Catalog scope is deliberate: we only publish cards we can support with named identity fields and lot paper on request. An analogue may be well-known in public databases and still absent from the storefront. Do not infer that a blog identity note means the compound is for sale.
If you need a listed reagent, match the product page CAS and sequence to the lot COA. For scope questions: admin@biolabsresearch.co. Related catalog example that is listed: AOD-9604 (sequence/CAS identity on the card — see AOD-9604 vs hGH 177–191).