| Anabolic steroid | Structure | Ester | Relative mol. weight | Relative AAS contentb | Durationc | ||||
|---|---|---|---|---|---|---|---|---|---|
| Position | Moiety | Type | Lengtha | ||||||
| Boldenone undecylenate |  | C17β | Undecylenic acid | Straight-chain fatty acid | 11 | 1.58 | 0.63 | Long | |
| Drostanolone propionate |  | C17β | Propanoic acid | Straight-chain fatty acid | 3 | 1.18 | 0.84 | Short | |
| Metenolone acetate |  | C17β | Ethanoic acid | Straight-chain fatty acid | 2 | 1.14 | 0.88 | Short | |
| Metenolone enanthate |  | C17β | Heptanoic acid | Straight-chain fatty acid | 7 | 1.37 | 0.73 | Long | |
| Nandrolone decanoate |  | C17β | Decanoic acid | Straight-chain fatty acid | 10 | 1.56 | 0.64 | Long | |
| Nandrolone phenylpropionate |  | C17β | Phenylpropanoic acid | Aromatic fatty acid | – (~6–7) | 1.48 | 0.67 | Long | |
| Trenbolone acetate |  | C17β | Ethanoic acid | Straight-chain fatty acid | 2 | 1.16 | 0.87 | Short | |
| Trenbolone enanthated |  | C17β | Heptanoic acid | Straight-chain fatty acid | 7 | 1.41 | 0.71 | Long | |
| Footnotes: a = Length of ester in carbon atoms for straight-chain fatty acids or approximate length of ester in carbon atoms for aromatic fatty acids. b = Relative androgen/anabolic steroid content by weight (i.e., relative androgenic/anabolic potency). c = Duration by intramuscular or subcutaneous injection in oil solution. d = Never marketed. Sources: See individual articles. | |||||||||