What is AOD-9604, and what is it studied for?
AOD-9604 is a synthetic sixteen-residue peptide corresponding to residues 177-191 of human growth hormone with an added N-terminal tyrosine, formula C78H123N23O23S2, mass 1815.1. It is the C-terminal fragment associated in rodent work with the hormone's effects on lipid metabolism rather than its growth-promoting domain, and it is studied in adipocyte and rodent models of fat metabolism. The material here is for in-vitro research only.
What is the structure of AOD-9604?
Sixteen residues including two cysteines that form the disulfide loop of the parent hormone's C-terminus, which subtracts two daltons from the linear mass and is the structural feature to check against the certificate. The added tyrosine was included for radio-iodination in the original work. No growth-hormone receptor binding is attributed to the fragment.
| Identifier | Value |
|---|---|
| Molecular formula | C78H123N23O23S2 |
| Molecular weight | 1815.1 g/mol |
| Residues | 16 |
| CAS number | 221231-10-3 |
| PubChem CID | 71300630 |
| Current lot | AOD5-0803 |
How is AOD-9604 thought to work?
Reported to act on lipid metabolism in rodent models through beta-3 adrenergic receptor-related pathways, without the growth-hormone receptor activity of the parent hormone; Heffernan and colleagues examined this in obese and beta-3 receptor knock-out mice in 2001. A receptor target is not established.
Which research areas use AOD-9604?
| Area | Typical models and endpoints |
|---|---|
| Adipocyte lipid metabolism | Lipolysis and lipogenesis assays in cultured adipocytes. |
| Rodent metabolic models | Diet-induced models in the original Monash work. |
| Growth-hormone fragment pharmacology | Comparison with full-length hormone to separate metabolic from growth-promoting domains. |
| Disulfide peptide chemistry | A looped fragment for reduction and oxidation method work. |
What does the published literature show?
Ng et al. (Hormone Research, 2000) and Heffernan et al. (Endocrinology, 2001) described the fragment's effects in mice. Clinical development for a metabolic indication was discontinued without approval; those trials describe a pharmaceutical candidate and are context only. Research use of the material here is in-vitro and preclinical.
How is AOD-9604 handled in the laboratory?
Dissolves in water; avoid reducing agents in diluents because of the disulfide. Contains methionine: protect from light and air. Store lyophilized at minus 20 °C; aliquot and freeze. The concentration table covers volumes and syringe units; the storage guide covers stability by compound class.
What does the current certificate show?
Lot AOD5-0803 tested at 99.78% purity by RP-HPLC (214 nm), identity confirmed by LC-MS/MS, endotoxin <0.05 EU/mL. The certificate is in the COA library and the lot number on the vial matches it. Sold as 5 mg per vial at $60, for laboratory research only.
Certificate history for AOD-9604
Every certificate the library holds for this compound, newest first. A replaced lot stays listed so the history can be read; the certificate dataset reads all 114 together.
| Lot | Issued | Size | Identity | Purity | Content | Status |
|---|---|---|---|---|---|---|
| AOD5-0803 | Aug 17, 2026 | 5 mg | LC-MS/MS | 99.78% | 5.16 mg | Current |
| AOD5-0318 | Apr 3, 2026 | 5 mg | MALDI-MS | 99.7% | 5.54 mg | Replaced |
Frequently asked questions
Does AOD-9604 act on the growth-hormone receptor?
No growth-hormone receptor activity is attributed to the fragment; that is the point of studying it separately from the full hormone.
What does the current certificate show?
Lot AOD5-0803: identity by LC-MS/MS at 1815.1, purity 99.78% by RP-HPLC at 214 nm, content 5.16 mg, endotoxin below 0.05 EU/mL. Issued 17 August 2026.
Why does the certificate mass matter for a disulfide peptide?
Because the oxidised, looped form is two daltons lighter than the reduced linear form. A mass two daltons high means the loop is open.
References
- Ng FM, Sun J, Sharma L, Libinaki R, Jiang WJ, Gianello R. Metabolic studies of a synthetic lipolytic domain (AOD9604) of human growth hormone. Horm Res. 2000;53(6):274-278.
- Heffernan M, Summers RJ, Thorburn A, et al. The effects of human GH and its lipolytic fragment (AOD9604) on lipid metabolism following chronic treatment in obese mice and beta(3)-AR knock-out mice. Endocrinology. 2001;142(12):5182-5189.
- PubChem CID 71300630, AOD 9604. National Library of Medicine. Read 2 October 2026.
Clinical results cited above describe regulated trials of pharmaceutical products and are given as context for research interest only. Nothing on this page describes or recommends use of the material sold here in humans or animals.
AOD-9604 5 mg
$60 per vial
Lot AOD5-0803 · 99.78% RP-HPLC (214 nm) · certificate published
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