(S)-(-)-2-(1-Hydroxyethyl)pyridine (CAS # 59042-90-9)
| Hazard Cov Cim | Xn – Ua phem |
| Risk Codes | R22 - Ua phem yog tias nqos R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. |
| Kev nyab xeeb piav qhia | 26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej kom ntau thiab nrhiav kev kho mob. |
| WGK Germany | 3 |
| FLUKA BRAND F CODE | 10 |
| HS Code | 29339900 ib |
Taw qhia
(S)-2-(1-Hydroxyethyl)pyridine yog chiral compound nrog cov tshuaj formula C7H9NO thiab muaj cov khoom siv kho qhov muag. Nws muaj ob lub stereoisomers, uas cov (S)-2-(1-Hydroxyethyl) pyridine yog ib qho. Nws yog xim tsis muaj xim rau yellowish kua nrog ib tug peculiar tsw.
(S)-2-(1-Hydroxyethyl)pyridine feem ntau yog siv los ua chiral inducer lossis catalyst hauv organic synthesis. Nws tuaj yeem siv rau hauv kev sib txuas ntawm lwm cov stereoisomer tebchaw, catalysts rau cov organic synthesis cov tshuaj tiv thaiv, kev txiav txim siab tshuaj synthesis thiab lwm yam.
Kev npaj ntawm (S)-2-(1-Hydroxyethyl) pyridine feem ntau tau txais los ntawm reacting pyridine nrog acetaldehyde nyob rau hauv tej yam kev mob. Txoj kev npaj tshwj xeeb tej zaum yuav yog pyridine thiab acetaldehyde rhuab los ua rau hauv cov tshuaj alkaline tsis, thiab cov khoom yog purified los ntawm crystallization kom tau (S)-2-(1-Hydroxyethyl) pyridine nrog siab purity.
Hais txog cov ntaub ntawv kev nyab xeeb ntawm (S)-2-(1-Hydroxyethyl) pyridine, nws yog cov kua nplaum uas muaj hluav taws kub thiab yuav tsum tau khaws cia kom deb ntawm cov nplaim taws thiab qhov kub thiab txias. Siv nrog kev saib xyuas kom tsis txhob nqus tau, nqos thiab tawv nqaij. Hnav cov khoom tiv thaiv tsim nyog xws li cov hnab looj tes tiv thaiv tshuaj thiab tsom iav thaum ua haujlwm. Khaws rau hauv qhov chaw txias, qhov cua, thiab kom deb ntawm oxidants thiab muaj zog acids thiab alkalis. Yog hais tias tsis sib haum mus rau hauv lub qhov muag los yog daim tawv nqaij, yuav tsum tam sim ntawd yaug nrog dej kom ntau, thiab raws sij hawm kev kho mob. Hauv kev siv thiab khaws cia, ua raws li cov txheej txheem kev nyab xeeb.
