Pyridine-4-boronic acid (CAS # 1692-15-5)
Risk thiab Safety
| Risk Codes | R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R22 - Ua phem yog tias nqos R34 - Ua rau kub hnyiab R11 - Cov nplaim hluav taws kub heev |
| Kev nyab xeeb piav qhia | S22 - Tsis txhob nqus plua plav. S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S45 - Thaum muaj xwm txheej lossis yog tias koj tsis xis nyob, nrhiav kev kho mob tam sim ntawd (qhia daim ntawv lo thaum twg ua tau.) S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. |
| WGK Germany | 3 |
| HS Code | 29339900 ib |
| Kev Ceeb Toom | Irritant |
| Hazard Class | TSIS TXAUS SIAB, Cia txias |
Pyridine-4-boronic acid (CAS # 1692-15-5) Kev taw qhia
4-Pyridine boronic acid yog cov organic compound. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm 4-pyridine boronic acid:
Zoo:
- Cov tsos mob: 4-pyridine boronic acid yog cov xim tsis muaj xim crystalline.
- Solubility: Soluble hauv dej thiab cov organic solvents xws li cawv, ethers, thiab ketones.
- Kev ruaj ntseg: 4-Pyridine boronic acid yog ruaj khov ntawm chav tsev kub, tab sis decomposition yuav tshwm sim nyob rau hauv lub xub ntiag ntawm kub kub, high pressures, los yog muaj zog oxidants.
Siv:
- Catalyst: 4-pyridylboronic acid tuaj yeem siv los ua catalyst hauv cov organic synthesis cov tshuaj tiv thaiv, xws li CC daim ntawv cog lus tsim cov tshuaj tiv thaiv thiab cov tshuaj tiv thaiv oxidation.
- Kev sib koom ua ke reagent: Nws muaj boron atoms, thiab 4-pyridylboronic acid tuaj yeem siv los ua kev sib koom tes reagent rau hlau ions, ua lub luag haujlwm tseem ceeb hauv catalysis thiab lwm yam tshuaj lom neeg.
Txoj kev:
- 4-Pyridine boronic acid tuaj yeem tau los ntawm kev ua haujlwm 4-pyridone nrog boric acid. Cov tshuaj tiv thaiv tshwj xeeb yuav raug kho raws li qhov xwm txheej tiag tiag.
Cov ntaub ntawv kev nyab xeeb:
- 4-Pyridine boronic acid yog cov organic compound, tab sis tseem yuav tsum tau saib xyuas kev nyab xeeb. Cov tsom iav thiab hnab looj tes tiv thaiv yuav tsum hnav rau kev ua haujlwm.
- Tsis txhob sib cuag nrog daim tawv nqaij thiab nqus plua plav. Nyob rau hauv rooj plaub ntawm kev sib chwv ntawm daim tawv nqaij, yaug tam sim ntawd nrog dej ntau.
- Thaum siv thiab khaws cia, yuav tsum tau saib xyuas kom tsis txhob muaj oxidants muaj zog thiab muaj zog acids kom tsis txhob ua rau muaj kev phom sij txaus ntshai.
- Thaum muab pov tseg, nws yuav tsum muab pov tseg kom zoo raws li cov cai hauv zos.
