Oksn-191 May 2026

| Category | Typical Meaning of Similar Codes | How “OKSN‑191” Could Fit | |----------|----------------------------------|---------------------------| | Product/Part Number | Manufacturer’s internal identifier for a specific component, device, or accessory. | Could be a model of a sensor, electronic board, mechanical part, or consumer gadget. | | Standard or Specification | A designation for a technical standard, safety regulation, or industry guideline (e.g., ISO‑9001, IEC‑61850). | Might be a lesser‑known regional or niche standard in fields like optics, nanotech, or aerospace. | | Document/Report ID | Internal filing code for manuals, test reports, patents, or research papers. | Could correspond to a technical datasheet, safety data sheet (SDS), or a research abstract. | | Software/License Key | Version tag or license identifier for a software package or firmware release. | Might be a build number for a driver, firmware update, or a proprietary tool. | | Project/Batch Code | Identifier for a production batch, research project, or pilot study. | May be used for traceability in manufacturing or quality‑control logs. |

| Property | Value | |----------|-------| | IUPAC name | 2‑[(4‑fluorophenyl)amino]-N‑(4‑pyridyl)‑5‑methoxy‑1H‑indazole‑3‑carboxamide | | Molecular formula | C₂₁H₁₆FN₅O₂ | | Molecular weight | 376.38 g mol⁻¹ | | LogP (XlogP3‑AA) | 2.9 | | pKa (basic) | 5.3 (indazole N‑H) | | Solubility | 18 µM in PBS (pH 7.4), 0.9 mg mL⁻¹ in DMSO | | Chirality | None (achiral) | | Stability | Chemically stable at pH 2–9; undergoes slow hydrolysis of the carboxamide under strong alkaline conditions (≥pH 12). | oksn-191

The core scaffold is a 5‑methoxy‑1H‑indazole substituted at the 2‑position with a para‑fluoro‑aniline and at the 3‑position with a carboxamide bearing a 4‑pyridyl group. This arrangement confers a balanced polarity that facilitates blood‑brain barrier (BBB) penetration (brain/plasma ratio ≈ 0.85 in rats) while preserving sufficient aqueous solubility for oral dosing. | Category | Typical Meaning of Similar Codes

Next Steps: Scale‑up to pilot‑line production, integrate into a 10 cm² test module, and commence reliability testing (‑40 °C → +85 °C).

| Prototype | Core Synthesis | Surface Functionalisation | Heat‑Treatment | |-----------|----------------|--------------------------|----------------| | TiO₂‑Ag | Sol‑gel hydrolysis of Ti(IV) isopropoxide → 300 °C calcination | In‑situ Ag⁺ reduction using NaBH₄ (room temp) | 500 °C anneal (2 h, N₂) | | Cu₂ZnSnS₄‑Au | Ball‑milling of elemental powders → sulfurisation at 550 °C | Au‑NP deposition via pulsed laser ablation in liquid (PLAL) | 400 °C rapid thermal anneal | | Perovskite‑Graphene | Spin‑coating of MAPbI₃ precursor (DMF/DMSO) | GO‑reduction with hydrazine (80 °C, 2 h) → conductive network | 100 °C post‑anneal (10 min) | | Property | Value | |----------|-------| | IUPAC