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AOD-9604

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AOD-9604 – Fragment 176-191 Metabolic Research Peptide.

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AOD-9604 (Fragment 176-191) is a synthetic peptide derived from the C-terminal region of human growth hormone, investigated in lipolysis and lipid-metabolism research models. Researchers study this fragment for its selectivity within adipose tissue signaling pathways independent of IGF-1 receptor activation. It is commonly employed in in vitro fat-cell studies and preclinical metabolic investigations. Supplied as a precision-lyophilized peptide of high analytical purity for controlled laboratory use only. Reconstitute with bacteriostatic water under sterile conditions.

Why you'll like it
  • Fragment 176-191 format
  • Lyophilized research-grade powder
  • Secure sealed vial
  • Laboratory research only
≥99%
HPLC purity
Certificate of analysis
Third-party tested. Every batch.

Independently verified by Freedom Diagnostics via HPLC and mass spec. Every vial carries a unique accession number you can look up directly with the lab.

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In every order
Peptide vial(s)
Alcohol prep pads
Storage guide
Shipping & returns
  • 2-day shipping nationwide, flat $12.50
  • Plain, discreet packaging. No product names on the outside.
  • Tracking emailed the moment your order ships.
Form
Lyophilized powder
Molecular Formula
C78H123N23O23S2
Molar Mass
1815.1 g/mol
CAS Number
221231-10-3
Overview

About AOD-9604

AOD-9604 is a synthetic peptide fragment derived from the C-terminus of human growth hormone (hGH), specifically corresponding to amino acids 177-191. Researchers originally investigated this fragment as part of efforts to isolate the lipolytic activity of hGH without the proliferative or metabolic side effects associated with the full molecule.

In laboratory settings, AOD-9604 has been studied for its interactions with beta-3 adrenergic receptors, which play a role in adipocyte metabolism. Preclinical models have examined how this fragment influences fat cell mobilization and lipogenesis without measurable impact on insulin-like growth factor-1 (IGF-1) levels, distinguishing it mechanistically from intact growth hormone.

Research into AOD-9604 has also explored its cartilage and bone metabolism properties in animal models. Studies published in peer-reviewed journals have investigated its potential utility in musculoskeletal research contexts, making it a compound of ongoing scientific interest across metabolic and regenerative biology disciplines.

Ordering & shipping

Buy AOD-9604 online

AOD-9604 (HGH Fragment 176-191) is in stock and available to buy online from Optimum ReGen Peptides — a real American research-peptide company with a physical storefront in Medford, Oregon, not an anonymous overseas dropshipper. Priced from $50, every order ships within two business days, flat $12.50 nationwide, in plain discreet packaging with tracking.

As your AOD-9604 supplier we back every batch with a third-party certificate of analysis and compound in a licensed US 503A pharmacy. Vials are supplied lyophilized at analytical purity for laboratory and research use only, not for human consumption.

Research context

Researched For

01
Adipose tissue metabolism

AOD-9604 has been studied in vitro and in animal models for its influence on lipolytic pathways in fat cells, with researchers investigating how the peptide fragment interacts with adrenergic signaling to affect lipid mobilization.

02
Cartilage and joint tissue research

Preclinical studies have examined AOD-9604 in the context of articular cartilage repair, with laboratory models investigating its effects on chondrocyte activity and extracellular matrix synthesis.

03
Bone metabolism

In vitro and animal-based studies have explored AOD-9604's interactions with osteoblast and osteoclast activity, investigating its role in bone remodeling pathways independent of IGF-1 signaling.

04
Metabolic pathway modulation

Researchers have studied how AOD-9604 interacts with beta-adrenergic receptors in metabolic models, examining its selectivity profile compared to native growth hormone fragments.

Methodology

How It Is Studied

In laboratory research, AOD-9604 is typically administered to cell cultures or animal models and assessed using lipolysis assays, which measure free fatty acid release from adipocytes. Researchers employ radioimmunoassay and ELISA techniques to monitor downstream hormonal markers, confirming that the fragment does not stimulate IGF-1 production as full hGH does.

Cartilage research employing AOD-9604 often uses ex vivo tissue explants or primary chondrocyte cultures, with outcomes measured through histological staining (safranin-O, toluidine blue) and proteoglycan quantification. Researchers compare treated samples against controls to assess changes in cartilage matrix composition at the molecular level.

Metabolic studies use radiolabeled tracer techniques and indirect calorimetry in animal models to track shifts in substrate utilization when AOD-9604 is introduced. Gene expression panels targeting lipolytic enzymes (HSL, ATGL) are also used to profile the peptide's molecular activity at the transcriptional level.

Technical sheet

Specifications

Technical data sheetResearch grade
FormLyophilized powder
Purity>= 99% (HPLC)
Molecular FormulaC78H123N23O23S2
Molar Mass1815.1 g/mol
CAS Number221231-10-3
SequenceTyr-Leu-Arg-Ile-Val-Gln-Cys-Arg-Ser-Val-Glu-Gly-Ser-Cys-Gly-Phe (disulfide bridge)
For research use only. Not for human consumption.
Storage protocols

Storage & Handling

In lyophilized form, AOD-9604 research material should be stored at -20°C in a sealed container, protected from moisture and direct light. Under these conditions, the peptide maintains structural integrity for extended periods.

Once reconstituted for laboratory use, solutions should be kept at 4°C and used within 48 to 72 hours. Freeze-thaw cycles degrade the peptide and should be avoided; researchers typically prepare single-use aliquots prior to reconstitution.

FAQ

Frequently Asked Questions

What distinguishes AOD-9604 from intact human growth hormone in research models?+
AOD-9604 represents only the C-terminal fragment (residues 177-191) of hGH. Laboratory studies show it retains lipolytic activity similar to the full molecule but does not stimulate IGF-1 production or exert the proliferative effects associated with intact growth hormone, making it a useful research tool for isolating specific metabolic pathways.
Has AOD-9604 been studied in cartilage research?+
Yes. Multiple preclinical investigations have used AOD-9604 in cartilage explant and cell culture models, examining its effects on chondrocyte behavior and proteoglycan synthesis. These are laboratory-based studies and do not constitute clinical findings.
What receptor pathways is AOD-9604 investigated for in metabolic research?+
Research has focused on beta-3 adrenergic receptor interactions, which are implicated in adipocyte lipolysis. Studies examine whether AOD-9604 modulates this pathway selectively, independent of the growth hormone receptor pathway.
How is AOD-9604 typically handled in a laboratory setting?+
Researchers typically reconstitute the lyophilized peptide in sterile bacteriostatic water and prepare aliquots for in vitro or in vivo experimental use. Strict aseptic technique and cold-chain handling are standard practice to preserve integrity.
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Research library

AOD-9604 research guides