Arimistane
Arimistane, chemically identified as Androsta-3,5-diene-7,17-dione, is a synthetic, non-steroidal aromatase inhibitor. Structurally derived from the androstane family, it functions as an irreversible “suicide” inhibitor of the aromatase enzyme. It is utilized in laboratory settings for experimental endocrine research, focusing on the mapping of androgen-estrogen balance and estrogen pathway suppression.
Technical Specifications
| Property | Specification |
| Product Name | Arimistane |
| CAS Number | 1420-07-1 |
| IUPAC Name | androsta-3,5-diene-7,17-dione |
| Molecular Formula | C₁₉H₂₄O₂ |
| Molecular Weight | 284.39 g/mol |
| Chemical Class | Androstane derivative |
| Assay Purity | Verified via HPLC and MS |
Research Applications & Mechanism of Interest
Arimistane is primarily studied for its ability to bind irreversibly to the aromatase (CYP19A1) enzyme. By acting as a suicide inhibitor, the compound prevents the conversion of androgens to estrogens in controlled laboratory systems, and enzyme activity does not recover until new aromatase enzymes are synthesized.
Key fields of investigative research include:
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Enzyme Kinetics: Utilizing the compound in aromatase inhibition assays to determine the duration of action and mechanistic suppression of estrogen synthesis.
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Endocrine Signaling: Serving as a comparator compound in studies regarding estrogen-pathway suppression and the broader endocrine signaling environment.
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Structure-Activity Relationship (SAR): Employing the molecule in comparative research to distinguish between steroidal and non-steroidal aromatase inhibitor behaviors.
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Pathway Validation: Providing a tool for the structural validation of androgen-estrogen balance models.
Storage & Handling Guidelines
To ensure the integrity of the material and maintain reproducible results in analytical workflows, adhere to the following laboratory standards:
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Storage Temperature: Maintain at 2–8°C for long-term stabilization.
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Environmental Controls: Store in a cool, dry environment shielded from direct light and moisture to prevent degradation.
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Handling: Utilize appropriate laboratory personal protective equipment (PPE) and minimize repeated exposure to ambient air.
Research Use Only Disclaimer: This product is distributed and sold strictly as a Research Use Only (RUO) compound. It is not a dietary supplement, medication, or drug, and is strictly prohibited for human or veterinary consumption. Kimera Chems supplies these materials exclusively to qualified scientific institutions and professional investigators for use within controlled in vitro and preclinical laboratory frameworks.
Frequently Asked Research Questions
Is Arimistane classified as an anabolic steroid?
While Arimistane is a synthetic androstane derivative, it is not classified as an anabolic steroid in research literature; it is studied specifically for its aromatase inhibition properties.
What is the significance of Arimistane’s “suicide inhibitor” mechanism?
In research models, because it binds irreversibly to the aromatase enzyme, the inhibition persists until the system synthesizes new aromatase enzymes, providing a reliable marker for duration-of-action studies.
Is pharmacokinetic data available for Arimistane?
Bioavailability and pharmacokinetic data are restricted to experimental laboratory models; there is no approved human pharmacokinetic data available.
| CAS Number | 1420-49-1 |
| IUPAC Name | (8R,9S,10R,13S,14S)-10,13-dimethyl-2,8,9,11,12,14,15,16-octahydro-1H-cyclopenta[a]phenanthrene-7,17-dione |
| Molecular Formula | C19H24O2 |
| Molecular Weight | 284.17 g/mol |


