5-Bromo-2 4-dichloropyrimidine (CAS # 36082-50-5)
| Risk Codes | R23/24/25 – Toxic los ntawm inhalation, nyob rau hauv kev sib cuag nrog daim tawv nqaij thiab yog hais tias nqos. R34 - Ua rau kub hnyiab R43 - Tej zaum yuav ua rau mob ntawm daim 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. S27 - Tshem tawm tag nrho cov khaub ncaws tsis huv tam sim ntawd. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. 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.) |
| UN IDs | UN 3263 8/PG 2 |
| WGK Germany | 3 |
| HS Code | 293359 0 |
| Kev Ceeb Toom | Toxic / Corrosive |
| Hazard Class | 8 |
| Packing Group | III |
Taw qhia
5-Bromo-2,4-dichloropyrimidine yog cov organic compound.
Zoo:
- Cov tsos mob: 5-Bromo-2,4-dichloropyrimidine yog dawb crystalline khoom.
- Solubility: 5-Bromo-2,4-dichloropyrimidine muaj solubility tsawg hauv dej thiab soluble hauv organic solvents xws li ethanol thiab acetone.
Siv:
- Cov tshuaj tua kab: 5-bromo-2,4-dichloropyrimidine tuaj yeem siv los ua cov tshuaj tua kab ntawm cov tshuaj heterocyclic, feem ntau yog siv rau kev tswj cov nroj tsuag dej thiab cov nroj tsuag dav.
Txoj kev:
Lub synthesis ntawm 5-bromo-2,4-dichloropyrimidine tuaj yeem ua tau los ntawm ntau txoj kev, ib txoj hauv kev zoo tshaj plaws yog los ua 2,4-dichloropyrimidine nrog bromine. Cov tshuaj tiv thaiv no feem ntau catalyzed los ntawm sodium bromide.
Cov ntaub ntawv kev nyab xeeb:
- 5-Bromo-2,4-dichloropyrimidine tuaj yeem decompose ntawm qhov kub thiab txias, ua rau cov pa roj hydrogen chloride. Kub kub thiab muaj zog acids yuav tsum tau zam thaum tuav thiab cia.
- 5-Bromo-2,4-dichloropyrimidine ua rau khaus qhov muag thiab tawv nqaij thiab yuav tsum zam. Cov hnab looj tes tiv thaiv tsim nyog, tsom iav, thiab lub tsho tiv thaiv yuav tsum tau hnav thaum ua haujlwm.
