7-Amino-3-cephem-4-carboxylic acid
Matsayin narkewa: 215-218 ° C
Matsayin tafasa: 536.9 ± 50.0 °C (An annabta)
Girma: 1.69± 0.1g/cm3(an annabta)
Fihirisar magana: 1.735 (kimanta)
Matsakaicin walƙiya: 278.508°C
Solubility: Mai narkewa a cikin maganin ruwa na acidic (dan kadan, mai zafi), DMSO (dan kadan). Properties: Fari ko fari crystalline foda.
Matsin tururi: 0mmHg a 25°C
ƙayyadaddun bayanai | naúrar | misali |
Bayyanar | Fari ko fari crystalline foda | |
Babban abun ciki | % | ≥98.5% |
Danshi | % | ≤1 |
Mono matasan | % | ≤0.5 |
Jimlar rikice-rikice | % | ≤1 |
Cephalosporin, ana amfani dashi azaman matsakaici na cefbutan da cefazoxime.
An saka sulfuric acid mai mahimmanci (104.3mL, 1.92mol) a cikin kwalabe uku, sa'an nan kuma an ƙara isophthalic acid (40g, 0.24mol), an motsa shi kuma mai tsanani zuwa 60 ℃, an gudanar da shi don 0.5h, kuma 60% nitric acid (37.8g, 0.36mol) an ƙara digo zuwa digo. Ƙara shi a cikin 2 hours. Bayan haka, yanayin kiyaye zafi a 60 ℃ na awanni 2. Yi sanyi zuwa ƙasa da 50 ° C, sannan ƙara 100ml na ruwa. An sanyaya kayan zuwa dakin zafin jiki, an zuba a cikin tacewa, an zubar da shi don cire acid din da aka zubar, an wanke kek ɗin da ruwa, an zubar da shi don sake sakewa, kuma samfurin ya kasance gram 34.6, yawan amfanin ƙasa shine 68.4%.
20Kg ko 25Kg/ guga, bokitin kwali, wanda aka yi masa layi da farin Layer da jakar polyethylene baki. 2℃-8 ℃ bushe, wuri mai sanyi, nesa da ajiyar haske, mai aiki na shekaru 2.