3-METHYL-5-ISOXAZOLEACETIC ACID (CAS # 19668-85-0)
Risk thiab Safety
| Hazard Cov Cim | Xi-xaj |
| Risk Codes | 36/37/38 – Khaus qhov muag, ua pa thiab tawv nqaij. |
| Kev nyab xeeb piav qhia | S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S36 - Hnav khaub ncaws tiv thaiv zoo. |
| WGK Germany | 3 |
| HS Code | 293499 0 |
3-METHYL-5-ISOXAZOLEACETIC ACID (CAS #19668-85-0) Kev taw qhia
-Zoo: Dawb crystalline khoom
- Melting Point: 157-160 ℃
Qhov hnyav molecular: 141.13g / mol
-Solubility: me ntsis soluble nyob rau hauv dej, soluble nyob rau hauv cawv, ether thiab organic solvents
-Cov khoom siv tshuaj: 3-methyll-5-isoxazoleacetic ACID tuaj yeem ua acylated, carbonylated thiab hloov los ntawm ACID-catalyzed cov tshuaj tiv thaiv.
Siv:
-Pharmaceutical teb: 3-METHYL-5-ISOXAZOLEACETIC ACID yog siv los ua ib qho khoom nruab nrab thiab feem ntau siv rau hauv kev npaj cov tshuaj thiab cov tshuaj lom neeg lom neeg.
-Pesticide field: Nws kuj tseem siv tau los ua raw khoom siv tshuaj tua kab, siv los npaj tshuaj tua kab, tshuaj tua kab thiab tshuaj tua kab.
Txoj kev:
Txoj kev npaj ntawm 3-methyll-5-isoxazoleacetic ACID yog qhov nyuaj dua, tab sis nws tuaj yeem ua tiav los ntawm cov kauj ruam hauv qab no:
1. Ua ntej npaj 5-Isoxazolylmethanol (5-Isoxazolylmethanol).
2. Siv pyruvic acid (Acetone) thiab Potassium nitrate (Potassium nitrate) nyob rau hauv lub xub ntiag ntawm iodide ions rau nitration cov tshuaj tiv thaiv, kev npaj ntawm 5-Isoxazolylcarboxylic acid (5-Isoxazolylcarboxylic acid).
3. Acylation ntawm 5-isoxazolyl carboxylic ACID siv methanol thiab sulfuric ACID los tsim 3-METHYL-5-ISOXAZOLEACETIC ACID.
Cov ntaub ntawv kev nyab xeeb:
Thaum tuav 3-methyll-5-isoxazoleacetic ACID, yuav tsum tau ceev faj txog kev nyab xeeb hauv qab no:
-Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag. Yog tias muaj kev sib cuag, yaug tam sim nrog dej ntau.
- Hnav cov cuab yeej tiv thaiv tus kheej tsim nyog xws li tsom iav, hnab looj tes thiab cov tsho tiv no.
-Tsis txhob nqus nws cov vapor lossis plua plav, thiab ua kom muaj cua txaus thaum ua haujlwm.
-Thaum ua qhov kev npaj hauv chav kuaj ntsuas, ua raws li kev nyab xeeb ntawm chav kuaj tshuaj.
