MK-2866 and MK-677 are different research compounds. The shared MK prefix can make a short purchasing note ambiguous, but the remaining digits matter. Ostarine refers to MK-2866; ibutamoren refers to MK-677.
The two catalog identities
| Reference | Common name | Listed liquid | Listed powder |
|---|---|---|---|
| MK-2866 | Ostarine / Enobosarm | 25 mg/ml · 50 ml | 1 g |
| MK-677 | Ibutamoren | 25 mg/ml · 50 ml | 1 g |
Write the name and code together
Using both the common name and research code reduces a preventable ordering error. A request for “MK” does not identify either material adequately, and a similar search suggestion is not a chemical synonym.
The Ostarine MK-2866 listing and Ibutamoren MK-677 listing retain those names separately and lead to different listings.
Do not infer a shared class from the prefix
A development-code prefix is not a pharmacological classification. MK-677 has been examined as a nonpeptide ghrelin-receptor ligand; that context does not make it a SARM simply because a retailer lists it near Ostarine.
The MK-677 research-class article explains that distinction. Classification is background information, not personal-use advice or a claim of experimental equivalence.
Similar label numbers can still concern different materials
Two listings can share a concentration and bottle volume while containing different compound references and compositions. Equal units do not erase the identity distinction.
Check the Ostarine solution record against the Ibutamoren solution record rather than comparing the large numbers on an image alone.
A pack is not an identity shortcut
The MK-2866 and MK-677 pack identifies two separate bottles. The pair is a commercial listing, not a combined preparation or a laboratory protocol.
Keep each product’s full name with its inventory record. A purchasing bundle does not establish that both materials are appropriate for the same work.
Close the loop before checkout
Review the identity, format, concentration or mass and carrier against the laboratory request. Clarify an abbreviated note before selecting a product rather than correcting it after dispatch.
Chemyo Labo supplies its catalog independently of Chemyo LLC. Use the store contact form for an item-specific question about the current listing.
Source notes
Primary source: pubmed.ncbi.nlm.nih.gov. Used for the terminology discussed above, not as evidence for this store’s inventory.