3-Bromo-2-chloro-5-(trifluoromethyl)pyridine (CAS # 71701-92-3)
Risk thiab Safety
| Risk Codes | R25 - Toxic yog nqos R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. |
| Kev nyab xeeb piav qhia | S7/9 - S22 - Tsis txhob nqus plua plav. S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag. S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S36/37 - Hnav cov khaub ncaws tiv thaiv thiab hnab looj tes tsim nyog. S38 - Yog tias qhov cua tsis txaus, hnav cov khoom ua pa uas tsim nyog. 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.) S51 - Siv tsuas yog nyob rau hauv qhov chaw muaj cua zoo. |
| UN IDs | UN 2811 6.1 / PGIII |
| WGK Germany | 3 |
| Hazard Class | 6.1 |
Taw qhia
Lub compound muaj cov ntaub ntawv tseem ceeb hauv cov tshuaj synthesis thiab tshuaj tua kab synthesis. Nws tuaj yeem siv los ua qhov nruab nrab rau kev sib txuas ntawm cov tshuaj lom neeg lom neeg. Piv txwv li, nws tuaj yeem siv los tsim cov tshuaj tua kab mob thiab tshuaj tua kab, thiab lwm yam.
3-Bromo-2-chloro-5-(trifluoromethyl) pyridine tuaj yeem npaj los ntawm ntau txoj kev. Ib txoj hauv kev yog los qhia txog bromine thiab chlorine atoms hauv cov tshuaj tiv thaiv los ntawm bromination thiab chlorination, feem, pib nrog pyridine. Tom qab ntawd, ib pawg trifluoromethyl tau qhia hauv cov tshuaj tiv thaiv trifluoromethylation. Qhov no synthesis feem ntau yog nqa tawm nyob rau hauv ib qho chaw inert kom ntseeg tau siab selectivity thiab tawm los ntawm cov tshuaj tiv thaiv.
3-Bromo-2-chloro-5-(trifluoromethyl) pyridine muaj cov ntaub ntawv kev nyab xeeb tsawg. Tej zaum nws yuav ua rau lub qhov muag, ua pa thiab tawv nqaij. Thaum siv, yuav tsum tau saib xyuas kom tsis txhob cuam tshuam ncaj qha rau ntawm daim tawv nqaij thiab qhov muag. Tib lub sijhawm, kev tiv thaiv tsim nyog yuav tsum tau ua thaum lub sijhawm ua haujlwm, xws li hnav tsom iav tiv thaiv, hnab looj tes thiab khaub ncaws tiv thaiv.
Tsis tas li ntawd, thaum tuav thiab khaws cia, yuav tsum tau saib xyuas kom tsis txhob muaj kev sib cuag nrog cov khoom siv hluav taws xob thiab ua kom muaj cua zoo. Thaum pov tseg cov khoom pov tseg, cov kev cai hauv zos yuav tsum tau ua raws li cov kev cai pov tseg uas tsim nyog yuav tsum tau txais yuav. Nws yog qhov zoo tshaj plaws siv thiab ua haujlwm raws li kev taw qhia ntawm cov kws paub txog kws tshuaj.
