R1881
RU 1881 (CAS 965-93-5) is a synthetic steroid with the molecular formula C19H24O2 and a molecular weight of 284.39 g/mol. This compound is recognised for its applications in biochemical research, particularly within cell biology studies. RU 1881 is supplied by Tech Serve Solutions for laboratory and research purposes, adhering to stringent quality standards.
- IUPAC
- (17b)-17-Hydroxy-17-methyl-Estra-4,9,11-trien-3-one,Methyltrienolone,Metribolone,NSC 92858,RU 1881
- Synonyms
- MethyltrienoloneMetriboloneNSC 92858RU 1881

Research Chemical
RU 1881 serves as a valuable tool in biochemical and pharmacological research. It is primarily utilised in studies investigating cellular mechanisms and biological pathways.
Cell Biology Studies
This compound is instrumental in cell biology research, enabling scientists to explore steroid receptor interactions and their downstream effects. Its use facilitates a deeper understanding of cellular responses to hormonal stimuli.
Drug Discovery and Development
RU 1881 can be employed in early-stage drug discovery programmes. Researchers may use it as a reference compound or a probe in screening assays for potential therapeutic agents.
| Molecular weight | 284.39 |
|---|---|
| Empirical formula | C19H24O2 |
| Assay | ≥98% (HPLC) |
| Solubility | DMSO: ≥10 mg/mL |
| Optical activity | [α]/D -48 to -68° |
| Storage temperature | 2-8°C |

Hazard statements
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is RU 1881 used for?
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RU 1881 is primarily used as a research chemical in biochemical and cell biology studies to investigate steroid receptor interactions and cellular mechanisms.
What is the CAS number and formula for RU 1881?
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The CAS number for RU 1881 is 965-93-5, and its molecular formula is C19H24O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies RU 1881 with a minimum purity of ≥98% by HPLC. TSS does not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should RU 1881 be handled and stored?
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RU 1881 is classified as a GHS07 Warning substance due to H319 (causes serious eye irritation). Handle with appropriate personal protective equipment and store refrigerated at 2-8°C. Refer to the Safety Data Sheet for detailed handling instructions.
Is RU 1881 a controlled substance?
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The provided data does not indicate that RU 1881 is a controlled substance. However, customers should verify its regulatory status in their specific jurisdiction.
How is RU 1881 packed, shipped, and exported?
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RU 1881 is carefully packed to ensure product integrity during transit. Tech Serve Solutions is experienced in global export, adhering to all necessary regulations for international chemical shipments.
How can I request a sample or quote for RU 1881?
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To request a sample or a quotation for RU 1881, please contact our sales department via the website or direct email, providing your specific requirements and shipping details.
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