Kayayyaki
Babban Tsarkake Ethyl 4-bromobutyrate CAS No. 2969-81-5 tare da Mafi kyawun Farashi
Bayanin Samfura
| Suna: | Ethyl 4-bromobutyrate |
| Ma'ana: | 4-Bromobutanoic acid, ethyl ester;BrCH2CH2CH2C(O)OC2H5; Butanoic acid, 4-bromo-, ethyl ester;Ethyl 4-bromobutanoate; Ethyl gamma-bromobutyrate;ETHYL 4-BROMO-N-BUTYRATE; ETHYL GAMMA-BROMO-N-BUTYRATE |
| CAS: | 2969-81-5 |
| Formula: | Saukewa: C6H11BrO2 |
| Bayyanar: | Ruwan rawaya kadan |
| EINECS: | 221-005-6 |
| Lambar HS: | Farashin 2915900090 |
Hanyar Shiri
A cikin kwalbar amsawa sanye take da mai motsawa, thermometer da bututun iska, 200 g (2.33 mol) na γ -butyrolactone da 375mL na ethanol anhydrous an sanya su, sanyaya zuwa 0 ℃ a cikin wankan gishiri na kankara, kuma an gabatar da busasshen iskar hydrogen bromide har sai masu amsawa ba su canza ba, wanda ya ɗauki kimanin awa 2.Bar shi a 0 ℃ don 24h.Zuba mai reactant a cikin ruwan sanyi 1L, daɗaɗa sosai, raba sassan kwayoyin halitta, sannan a cire ruwan ruwan tare da bromoethane sau biyu, 10mL kowane lokaci.Haɗuwa da yadudduka, wanke ethanol tare da 2% potassium hydroxide bayani, tsarma hydrochloric acid da ruwa, bushewa tare da anhydrous sodium sulfate, dawo da sauran ƙarfi, vacuum fractionating, da kuma tattara juzu'i a 97 ~ 99 ℃ / 3.3 kPa don samun 350 ~ 380 g na ethyl γ-bromobutyrate (1) tare da yawan amfanin ƙasa na 77% ~ 84%.
Amfani
Ethyl 4-bromobutyrate shine tushen carboxylate, wanda ba shi da launi, bayyananne zuwa ruwan rawaya.Ana iya amfani da shi a matsayin tsaka-tsakin magungunan kashe qwari da magunguna, kuma ana iya amfani dashi a cikin bincike na dakin gwaje-gwaje da haɓakawa da samar da sinadarai.
Bayanin Tsaro
Matsayin shiryawa: I;II
Ƙungiyar Haɗari: 6.1
Lambar HS: 2915900090
WGK_Jamus (Jerin Rarraba Abubuwan Gurɓataccen Ruwa a Jamus): 3
Lambar Class Code: R22;R36/37/38
Umarnin Tsaro: S26-S36-S37/39
Alamar aminci: S26: Idan ana hulɗa da idanu, kurkura nan da nan da ruwa mai yawa kuma aika zuwa likita.
S36: Sanya tufafin kariya masu dacewa.
Alamomin Hazard: Xn: Cuta
