What is OTR-AC and how does it relate to ostarine?

OTR-AC is the acetate ester of ostarine. The product record lists ostarinyl acetate, Ostarine-O-Acetate and ostarine acetate ester as synonyms, and gives the formula C21H16F3N3O4 with a molar mass of 431.37 g/mol, which is the ostarine skeleton plus an acetyl group.

What batch documentation is published for this powder?

Three documents are published for batch BA2113, two of which are retests: a certificate of analysis retest and an HPLC purity retest, alongside FTIR identity analysis. Further documentation is available through Chemyo Quality Control and the lab reports page, so identity and purity can be checked before the material is weighed out.

Is ostarine also stocked in other formats?

Yes. The parent compound is listed separately as Ostarine MK-2866 powder in 1g and as an Ostarine MK-2866 solution at 25mg/ml in a 50ml bottle. Both are listed in the same catalog and carry their own published batch documentation, so each format can be checked independently before ordering.

OTR-AC | Ostarine-O-Acetate Powder – 1g - Image 2

Powders

OTR-AC | Ostarine-O-Acetate Powder – 1g

Name: OTR-AC for Sale - Ostarine-O-Acetate Powder 1g | Chemyo
SKU: x-31
Price: 49.99 USD
Availability: InStock

$49.99

View Lab Reports

OTR-AC for sale from Chemyo: Ostarine-O-Acetate supplied as a dry 1g research powder, the acetate ester of ostarine. Molar mass 431.37 g/mol, formula C21H16F3N3O4, also recorded as ostarinyl acetate. Three batch documents published for BA2113, covering COA, FTIR identity and HPLC purity. For laboratory research use only. Not intended for human consumption.

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SKU: x-31 Category: Powders

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Description
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Description

Researchers comparing OTR-AC for sale can review the full specification of this listing from Chemyo before ordering. OTR-AC Ostarine-O-Acetate Powder is listed in our buy SARM research powders catalog at a labeled format of 1g, with molar mass, chemical formula, synonyms, storage information and available analytical or quality-control documentation set out on this page.

OTR-AC for Sale as a 1g Research Powder

OTR-AC is the acetate ester of ostarine, which is why listings of OTR-AC for sale appear under several names: the product record gives ostarinyl acetate, Ostarine-O-Acetate and ostarine acetate ester as synonyms. It is supplied here as a dry 1g powder rather than a solution, so material is weighed out per experiment and the vehicle is chosen by the laboratory rather than fixed in the bottle.

Chemyo OTR-AC is listed as a selective androgen receptor modulator with a molar mass of 431.37 g/mol and the chemical formula C21H16F3N3O4 — the ostarine skeleton plus an acetyl group, which is what distinguishes it from the parent compound. Every figure shown here is taken from the product record rather than estimated.

OTR-AC Ostarine-O-Acetate Powder Research Specifications

Application	Selective Androgen Receptor Modulator
CAS	1182367-47-0
Molar Mass	431.37 g/mol
Chemical Formula	C₂₁H₁₆F₃N₃O₄
Synonyms	Ostarinyl Acetate (MK2886 acetate), Ostarine-O-Acetate, Ostarine acetate ester
Storage	Minimize open air exposure, store in a cool dry place.
Reports	View Quality Control
Terms	The products we offer are intended for laboratory research use only. Please familiarize yourself with our Terms & Conditions prior to ordering.

Lab Reports

OTR-AC for sale at Chemyo: batch BA2113 certificate of analysis retest for Ostarine-O-Acetate powder — BA2113 OTR-AC COA RETEST

FTIR identity analysis for batch BA2113 OTR-AC ostarinyl acetate powder — BA2113 OTR-AC FTIR

HPLC purity retest for batch BA2113 OTR-AC Ostarine-O-Acetate 1g powder — BA2113 OTR-AC HPLC RETEST

Quality & Research Information

Three documents are published for batch BA2113, two of them retests: the certificate of analysis and HPLC purity were both run again, alongside FTIR identity analysis. That paperwork matters more for a powder than for a solution, since identity and purity are all that can be verified before the material is weighed out. To check the figures for a batch, view OTR-AC batch lab reports. Product information is provided for laboratory research use only and is not intended as medical guidance.

Related Research Powders

Continue browsing related options: buy Ostarine MK-2866 powder in 1g, the parent compound of this ester, alongside Andarine S4 powder for sale and Testolone RAD-140 powder for sale, both also in 1g. If a ready-measured format suits the protocol better, the Ostarine MK-2866 solution for sale is supplied at 25mg/ml.

Where to Buy OTR-AC from Chemyo

Listings of OTR-AC for sale vary widely in how much they disclose. This Chemyo listing stays focused on the details researchers need before purchase: the labeled quantity, molar mass and formula, full synonym list, storage guidance and published quality-control documentation for the batch supplied. Nothing on this page is inferred, and no specification is presented that is not held on record for OTR-AC Ostarine-O-Acetate Powder – 1g.

Ready to order OTR-AC for sale from Chemyo? Review the specifications and available documentation above before placing your research order. Payment is accepted by crypto, Cash App, Apple Pay and Chime. For laboratory research purposes only. Not intended for human consumption.

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What makes Chemyo special

Triple tested before release. Samples are independently tested across identity, purity and concentration.

Identity Purity Concentration

Compound Identity Verified

HPLC spectral matching and FTIR confirm the compound matches the expected reference.

99%+ Purity Standard

Each material is assayed by HPLC and must meet the 99%+ purity standard.

Label Claim Verified

Finished solutions are assayed by HPLC to confirm the labeled mg/ml.

Only after all applicable QC checks pass is the batch released.

How we compare

Feature	ChemYo	Market Standard
Lab Reports	✓	✕
Third-party tested for identity, purity and concentration	✓	✕
50ml volume	✓	✕
Induction sealed	✓	✕
Batch traceability	✓	✕

Frequently asked questions

Why test every batch so thoroughly?

Identity, purity and concentration cannot be confirmed by appearance — they have to be verified analytically. Every released batch is tested by an independent laboratory before it is offered for sale.

What must a batch pass before it ships?

Confirmed compound identity and raw material purity of 99% or higher. For solutions, the finished liquid must also test within 10% of the labeled mg/ml. A batch that fails any required checkpoint is not released.

Why test the finished solution and not only the raw material?

Raw material testing confirms the compound is correct and pure before production. For a solution that alone does not confirm the concentration in the bottle, so finished bottles are tested by HPLC to verify the final mg/ml.

Does it matter which batch I received?

In practice, no. Every batch in circulation has cleared the same release criteria, so the batch you receive does not change the content or the quality.