Cas no 651-55-8 (17a-Dihydro Equilin)

17a-Dihydro Equilin is a steroidal compound derived from equilin, a naturally occurring estrogen found in horses. It is primarily used in pharmaceutical research and hormone therapy development due to its structural similarity to endogenous estrogens. The compound exhibits selective estrogenic activity, making it valuable for studying receptor interactions and metabolic pathways. Its stability and well-defined pharmacokinetic profile facilitate precise experimental applications. Researchers utilize 17a-Dihydro Equilin to investigate estrogen-mediated processes, including bone metabolism and cardiovascular effects, as well as to develop targeted therapeutic agents. The compound’s high purity and consistent bioavailability ensure reliable results in both in vitro and in vivo studies.
17a-Dihydro Equilin structure
17a-Dihydro Equilin structure
Product Name:17a-Dihydro Equilin
CAS No:651-55-8
MF:C18H22O2
MW:270.366085529327
CID:512545
Update Time:2025-06-09

17a-Dihydro Equilin Chemical and Physical Properties

Names and Identifiers

    • Estra-1,3,5(10),7-tetraene-3,17-diol,(17a)-
    • 17α-Dihydro Equilin
    • estra-1,3,5(10),7-tetraene-3,17alpha-diol
    • (17α)-Estra-1,3,5(10),7-tetraene-3,17-diol
    • 17a-Dihydro Equilin
    • Inchi: 1S/C18H22O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h3-5,10,14,16-17,19-20H,2,6-9H2,1H3/t14-,16+,17-,18+/m1/s1
    • InChI Key: NLLMJANWPUQQTA-SPUZQDLCSA-N
    • SMILES: O[C@@H]1CC[C@H]2C3=CCC4C=C(C=CC=4[C@H]3CC[C@@]21C)O

Computed Properties

  • Exact Mass: 270.16200
  • Monoisotopic Mass: 270.16198
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 2
  • Hydrogen Bond Acceptor Count: 2
  • Heavy Atom Count: 20
  • Rotatable Bond Count: 0
  • Complexity: 429
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 4
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Topological Polar Surface Area: 40.5

Experimental Properties

  • Density: 1.23
  • Melting Point: 205.5-205.6°
  • Boiling Point: 457.798°C at 760 mmHg
  • Flash Point: 217.155°C
  • Refractive Index: 1.637
  • PSA: 40.46000
  • LogP: 3.52930
  • Specific Rotation: D20 +213° (ethanol)

17a-Dihydro Equilin Security Information

  • Hazard Category Code: 36/38
  • Safety Instruction: 26
  • Hazardous Material Identification: Xi

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Additional information on 17a-Dihydro Equilin

Comprehensive Analysis of 17a-Dihydro Equilin (CAS No. 651-55-8): Properties, Applications, and Research Insights

17a-Dihydro Equilin (CAS No. 651-55-8) is a steroidal compound derived from equine estrogen, garnering significant attention in pharmaceutical and biomedical research. As a metabolite of equilin, it plays a pivotal role in hormone-related studies, particularly in menopause management and metabolic regulation. This article delves into its molecular structure, mechanisms of action, and cutting-edge applications, addressing trending queries like "17a-Dihydro Equilin benefits" and "CAS 651-55-8 safety profile."

The compound's unique 17a-reduced configuration distinguishes it from other estrogen derivatives, influencing its binding affinity to estrogen receptors (ERα and ERβ). Recent studies highlight its potential in addressing hormone replacement therapy (HRT) challenges, such as minimizing cardiovascular risks while maintaining bone density—a hot topic among researchers and clinicians. Users frequently search for "17a-Dihydro Equilin vs. conjugated estrogens," reflecting growing interest in comparative efficacy.

From a biochemical perspective, 651-55-8 exhibits selective tissue modulation, making it a candidate for targeted therapies. Its interaction with cytochrome P450 enzymes has sparked discussions about personalized medicine approaches, especially in metabolic disorders. SEO-optimized terms like "17a-Dihydro Equilin pharmacokinetics" and "equilin derivatives in oncology" align with current academic discourse, emphasizing its role in precision medicine.

In cosmetic science, 17a-Dihydro Equilin is explored for its skin-aging mitigation properties due to collagen-stimulating effects. This application resonates with popular searches such as "steroidal anti-aging compounds" and "estrogen-based dermatology." Analytical techniques like HPLC-MS are critical for quantifying its purity, a point often queried as "CAS 651-55-8 analytical methods."

Environmental scientists are investigating its biodegradation pathways, responding to concerns about pharmaceutical pollutants. This intersects with searches like "estrogen derivatives environmental impact," showcasing its multidisciplinary relevance. Regulatory frameworks for steroid synthesis also feature prominently, with terms like "GMP compliance for 651-55-8" reflecting industry priorities.

Emerging research on neuroprotective effects of 17a-Dihydro Equilin has entered mainstream scientific dialogue, particularly in neurodegenerative disease models. Queries such as "equilin metabolites and blood-brain barrier" underscore this frontier. Meanwhile, advances in green chemistry aim to optimize its synthesis—addressing searches like "eco-friendly production of CAS 651-55-8."

The compound's crystal polymorphism and solubility profiles remain active research areas, crucial for formulation scientists. These technical aspects correlate with high-search-volume terms like "17a-Dihydro Equilin bioavailability enhancement." Additionally, its role in gender-affirming therapies has generated nuanced discussions, though rigorous clinical validation is ongoing.

In conclusion, 17a-Dihydro Equilin (CAS No. 651-55-8) represents a nexus of innovation across therapeutics, cosmetics, and environmental science. By addressing both foundational science and trending applications—from "HRT alternatives" to "sustainable steroid production"—this analysis provides a holistic view tailored to contemporary scientific and public interest.

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