Tom ntej: Methyl 5-chloropyrazine-2-carboxylate CAS # 33332-25-1
| Hazard Cov Cim | Xi-xaj |
| Risk Codes | 36/37/38 – Khaus 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 |
| Hazard Class | IRRITANT |
Taw qhia
Methyl-5-chloropyrazine-2-carboxylate yog cov organic compound nrog cov tshuaj formula C7H5ClN2O2. Hauv qab no yog cov lus piav qhia ntxaws txog nws qhov xwm txheej, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb:
Xwm:
-Cov tsos mob: Methyl-5-chloropyrazine-2-carboxylate yog nyob rau hauv daim ntawv ntawm cov muaju dawb los yog crystalline hmoov.
- Melting point: txog 54-57 ℃.
-Boiling point: Txog 253-254 ℃.
-Solubility: Methyl-5-chloropyrazine-2-carboxylate yog soluble hauv qee cov organic solvents, xws li ethanol thiab dichloromethane.
-Stability: Lub compound yog qhov ruaj khov nyob rau hauv cov xwm txheej khaws cia.
Siv:
Methyl-5-chloropyrazine-2-carboxylate muaj qee yam kev siv tus nqi hauv tshuaj synthesis thiab chaw ua tshuaj.
-Chemical synthesis: Nws tuaj yeem siv los ua cov khoom siv raw lossis cov khoom nruab nrab hauv cov organic synthesis rau kev sib txuas ntawm lwm cov tebchaw, xws li tshuaj tua kab, dyes thiab tshuaj intermediates.
- Pharmaceutical teb: Methyl-5-chloropyrazine-2-carboxylate ua ib qho nruab nrab ntawm kev sib txuas ntawm qee yam tshuaj thiab muaj cov dej num lom xws li tshuaj tua kab mob, tshuaj tua kab mob thiab tshuaj tiv thaiv.
Txoj kev:
Methyl-5-chloropyrazine-2-carboxylate feem ntau tuaj yeem npaj los ntawm cov kauj ruam hauv qab no:
1. React 5-chloropyrazine nrog Formic Anhydride los tsim 5-chloropyrazine -2-Formic Anhydride.
2. React 5-chloropyrazine-2-carboxylic anhydride nrog methanol los tsim lub hom phiaj khoom Methyl-5-chloropyrazine-2-carboxylate.
Qhov no yog txoj hauv kev yooj yim chemical synthesis, tab sis cov txheej txheem synthesis tshwj xeeb yuav txawv raws li kev tshawb fawb sib txawv.
Cov ntaub ntawv kev nyab xeeb:
-Cov Methyl-5-chloropyrazine-2-carboxylate feem ntau muaj kev nyab xeeb dua hauv kev ua haujlwm raug, tab sis cov kev ntsuas kev nyab xeeb hauv qab no tseem yuav tsum tau them nyiaj rau:
-Kev sib cuag: Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag. Hnav cov khoom tiv thaiv tus kheej xws li cov hnab looj tes kuaj thiab tsom iav thaum ua haujlwm.
-Inhalation: Lub tshuab ua pa zoo yuav tsum tau nruab thaum lub sijhawm ua haujlwm kom ntseeg tau tias huab cua zoo nyob hauv tsev. Tsis txhob nqus cov plua plav lossis vapors.
-edible: Methyl-5-chloropyrazine-2-carboxylate rau tshuaj, yog nruj me ntsis txwv tsis pub.
-Storage: Khaws cov khoom sib xyaw rau hauv qhov chaw qhuav, txias, qhov cua, kom deb ntawm hluav taws thiab hluav taws kub.
Thov nco ntsoov tias cov ntaub ntawv saum toj no tsuas yog siv rau kev siv xwb, thiab koj yuav tsum siv ceev faj thiab ua raws li cov cai tswj kev nyab xeeb tsim nyog thaum siv cov khoom sib xyaw no.
