Description

LGD-4033 Overview

LGD-4033, also known as Ligandrol, is an orally active small-molecule selective androgen receptor modulator (SARM) that has been investigated in pharmacology and androgen-receptor research.

Unlike peptide compounds, LGD-4033 has a defined small-molecule chemical structure rather than an amino-acid sequence. Research has examined its interaction with androgen receptors and its pharmacological characteristics.

Because LGD-4033 is a pharmacologically active compound, it should be clearly separated from nutritional supplements and should not be marketed as a human performance-enhancing product.

Research Use Only. Not for Human or Veterinary Administration.

What Is LGD-4033?

LGD-4033, commonly called Ligandrol, is a synthetic selective androgen receptor modulator (SARM).

SARMs are small molecules designed to interact with androgen receptors. LGD-4033 has been investigated as a research compound for understanding androgen-receptor signaling, pharmacology, receptor selectivity, and related biological pathways.

Research areas may include:

• Androgen receptor biology
• Receptor-binding research
• Molecular pharmacology
• Drug-discovery research
• Structure–activity relationship studies
• Pharmacokinetic research
• Small-molecule characterization

LGD-4033 is not an amino-acid peptide, so terms such as peptide sequence, peptide reconstitution, and lyophilized peptide should not be applied to this product.

Molecular Formula, Molecular Weight & Chemical Structure

Because LGD-4033 is a small molecule, the appropriate terminology is chemical structure, rather than peptide sequence.

The absence of a peptide sequence is important when preparing your product specification sheet or COA.

For professional analytical documentation, molecular identity can be confirmed using techniques such as HPLC and mass spectrometry.

Purity

A suitable research-grade specification may be presented as:

Purity: ≥98% by HPLC

However, this claim should only be displayed when supported by the actual batch-specific analytical report.

A professional COA may include:

• HPLC purity
• HPLC chromatogram
• Mass spectrometry
• Expected molecular mass
• Observed molecular mass
• Lot/batch number
• Testing date
• Appearance
• Assay/content information where applicable

For researchers, a batch-specific COA provides more meaningful quality information than a generic purity statement.

Appearance

LGD-4033 is a small-molecule research compound, so it should not automatically be described as a “white lyophilized peptide powder.”

Depending on the formulation and manufacturing process, the material may be supplied as a white to off-white powder.

Your product listing should use the exact appearance reported in the applicable batch specification or COA.

Visual appearance alone cannot confirm chemical identity or purity.

Available Research Quantities

Available quantities depend on your actual inventory and packaging configuration.

Common research formats can include:

• 10 mg
• 25 mg
• 50 mg
• 100 mg
• 250 mg

For a research catalog, smaller quantities can be useful for analytical laboratories, while larger quantities may be appropriate for laboratories conducting repeated experiments.

Only advertise quantities that you actually stock and can support with appropriate documentation.

Each container should clearly identify:

LGD-4033 + quantity + lot number + research-use statement

Storage Recommendations

LGD-4033 should be stored according to the stability information established for the specific product and batch.

General laboratory considerations include:

• Keep the container tightly closed.
• Protect from excessive moisture.
• Avoid unnecessary exposure to heat.
• Protect from direct light.
• Minimize temperature fluctuations.
• Store according to the manufacturer’s documented conditions.
• Keep the product in its original, properly labeled container.

Researchers should consult the product’s COA or technical documentation for the applicable storage conditions.

Reconstitution / Preparation Information

Because LGD-4033 is a small molecule rather than a peptide, conventional peptide reconstitution instructions do not apply.

The preparation method depends on the intended laboratory experiment and the compound’s solubility characteristics.

Researchers should:

• Consult the compound’s technical documentation.
• Select a solvent appropriate for the intended analytical application.
• Establish the required concentration experimentally.
• Use appropriate laboratory equipment and controls.
• Document solvent, concentration, preparation date, and batch number.
• Follow validated laboratory procedures for prepared solutions.

There is no universal preparation protocol appropriate for every LGD-4033 research application.

This product should not be accompanied by human dosing or administration instructions.

Intended Use — Research Only

LGD-4033 is intended for laboratory and scientific research only.

Potential research applications include:

• Androgen receptor research
• Small-molecule pharmacology
• Receptor-binding studies
• Drug-discovery research
• Structure–activity relationship investigations
• Molecular characterization
• Pharmacokinetic research

LGD-4033 should not be marketed as:

• A bodybuilding supplement
• A muscle-building product for consumers
• A testosterone replacement
• A performance-enhancing supplement
• A treatment for low testosterone
• A medication
• A product for human consumption

Research Use Only. Not for Human or Veterinary Administration.

Researchers are responsible for complying with applicable regulations, institutional requirements, and laboratory safety procedures.

Packaging & Shipping Information

Professional packaging should protect the research compound and provide clear product identification.

Packaging may include:

• Securely sealed container
• Product identification label
• Net quantity
• Lot/batch number
• Research-use statement
• Protective secondary packaging
• Batch-specific COA

The label should clearly identify LGD-4033 as a research compound, not a peptide or nutritional supplement.

Upon delivery, researchers should inspect the packaging for visible damage and verify:

Product name + quantity + lot number + COA

Shipping should follow the documented stability requirements and all applicable transportation regulations.

Frequently Asked Questions About LGD-4033

What is LGD-4033?

LGD-4033, also called Ligandrol, is a synthetic selective androgen receptor modulator investigated in pharmacological research.

Is LGD-4033 a peptide?

No. LGD-4033 is a small-molecule compound. It does not have an amino-acid sequence.

What is the molecular formula?

The molecular formula is:

C₁₄H₁₂F₆N₄O

What is the molecular weight?

LGD-4033 has a molecular weight of approximately:

338.26 g/mol

What is the CAS number?

The commonly associated CAS number is:

1165910-22-4

What purity should researchers look for?

A research-grade product may specify ≥98% purity by HPLC, provided that the actual batch testing supports this claim.

What does LGD-4033 look like?

It may be supplied as a white to off-white powder, depending on the specific formulation and manufacturing process.

Does LGD-4033 have a peptide sequence?

No. Since LGD-4033 is a small molecule, a peptide sequence is not applicable.

Does LGD-4033 require peptide reconstitution?

No. Traditional peptide reconstitution terminology does not apply because LGD-4033 is not a peptide. Laboratory preparation depends on the research application and compound solubility.

What is LGD-4033 researched for?

It has been investigated in research involving androgen receptor signaling, receptor pharmacology, molecular characterization, and drug discovery.

Should LGD-4033 have a COA?

Yes. A batch-specific COA is strongly recommended for professional research materials. It can document HPLC purity, mass spectrometry, molecular identity, and lot information.

Is LGD-4033 intended for human use?

A research-grade product should be clearly labeled:

Research Use Only — Not for Human or Veterinary Administration.

Key Takeaway

LGD-4033 is a small-molecule research compound, not a peptide.

Its key specifications include:

• Common name: Ligandrol
• Compound class: Selective androgen receptor modulator
• Molecular formula: C₁₄H₁₂F₆N₄O
• Molecular weight: 338.26 g/mol
• CAS: 1165910-22-4
• Peptide sequence: Not applicable
• Purity: ≥98% by HPLC when supported by the relevant COA
• Appearance: Typically white to off-white powder
• Intended use: Laboratory research only

For a professional product page, the most important quality indicators are verified chemical identity, documented purity, appropriate analytical testing, accurate labeling, and batch-specific documentation.

Avoid calling LGD-4033 a “peptide” or providing consumer dosing instructions. Accurate scientific terminology will make the product page more credible and useful to researchers.

Research Use Only. Not for Human or Veterinary Administration.

Continue Learning: If you found this guide helpful, you may also want to read our previous peptide education articles covering the following topics

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• Tirzepatide Side Effects: 15 Powerful Facts, Warning Signs & Safe Management
• Why am I not losing weight on semaglutide?
• How Much Weight Can You Lose on Tirzepatide?
• Which peptide suppresses appetite the most?

Scientific Reference: For additional peer-reviewed information on peptide stability, sterile preparation, and pharmaceutical reconstitution practices, visit

PubMed

United States Pharmacopeia (USP) – USP <797> Sterile Compounding

National Center for Biotechnology Information (NCBI)

(FDA)