Bibliographic record
Abstract
[5492-69-3] C8H20INO4 (MW 321.19) InChI = 1S/C8H20N.HIO4/c1-5-9(6-2,7-3)8-4;2-1(3,4)5/h5-8H2,1-4H3;(H,2,3,4,5)/q+1;/p-1 InChIKey = YXYPONURGKGPDV-UHFFFAOYSA-M (oxidizing agent used for generating nitroso compounds from hydroxamic acids,1 N-hydroxycarbamic esters,2 and N-hydroxyureas3) Physical Data: mp 176–177 °C. Solubility: sol H2O, MeCO2H, acetone, pyridine, CH2Cl2; slightly sol alcohol; insol ethyl acetate, Et2O, benzene. Preparative Methods: a solution of periodic acid (H5IO6) (7.72 g, 0.034 mol) in water (20 mL) was added slowly to a cooled solution of 25% tetraethylammonium hydroxide (20 mL, 0.034 mol). The resulting solution was evaporated under reduced pressure, the solid residue was extracted with hot t-butyl alcohol, and the product was precipitated by addition of diisopropyl ether. Recrystallization from t-butyl alcohol yielded a white solid (8.5 g, 82%).4a Caution: a safety shield should be used since any excess H5IO6 present may explode violently during concentration of the aqueous solution and extraction of the crude salt.4b Handling, Storage, and Precautions: the reagent is stable and is best stored in a desiccator in the dark.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.033 | 0.026 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".