7-Amino-3-cephem-4-carboxylic acid
Ka helu hehee: 215-218°C
Puni paila: 536.9±50.0 °C(Wānana ʻia)
Māmā: 1.69± 0.1g /cm3(Wānana ʻia)
Hōʻike hōʻano hou: 1.735 (manaʻo)
Kaila uila: 278.508°C
Hiki ke hoʻoheheʻe ʻia: Hiki ke hoʻoheheʻe ʻia i loko o ka wai ʻawaʻawa (ʻuʻuku, wela), DMSO (ʻuʻuku). Pono: Keʻokeʻo a keʻokeʻo crystalline pauka.
Pumi mahu: 0mmHg ma 25°C
kikoʻī | hui | maʻamau |
Ka nana aku | Keʻokeʻo a keʻokeʻo crystalline pauda | |
Mea nui | % | ≥98.5% |
Mākū | % | ≤1 |
Mono hybrid | % | ≤0.5 |
Huipuu nui | % | ≤1 |
ʻO Cephalosporin, hoʻohana ʻia ma ke ʻano he waena o cefbutan a me cefazoxime.
Hoʻohui ʻia ka waikawa sulfuric concentrated (104.3mL, 1.92mol) i loko o ʻekolu mau hue, a laila hoʻohui ʻia ka waikawa isophthalic (40g, 0.24mol), hoʻoulu ʻia a wela i 60 ℃, paʻa no 0.5h, a me 60% nitric acid (37.8g, 0.36). mol) i hoʻohui ʻia no ka hoʻomalu ʻana i ka degere holo wikiwiki. Hoʻohui i loko o 2 mau hola. Ma hope o ka hoʻohui, mālama ʻia ka wela ma 60 ℃ no 2 mau hola. Hoʻolili i lalo o 50 ° C, a laila hoʻohui i 100mL o ka wai. Hoʻomaʻalili ʻia ka mea i ka lumi wela, ninini ʻia i loko o ka kānana, hoʻomoʻi ʻia e wehe i ka waiʻona, holoi ʻia ka keke kānana me ka wai, hoʻokahe ʻia e recrystallize, a ʻo ka huahana keʻokeʻo he 34.6 grams, ʻo ka hua he 68.4%.
20Kg a i ʻole 25Kg/ bākeke, pahu pahu pahu, i hoʻopaʻa ʻia me kahi papa keʻokeʻo a me kahi ʻeke polyethylene ʻeleʻele. 2 ℃ -8 ℃ maloʻo, wahi anuanu, kahi mamao mai ka mālama māmā, kūpono no 2 mau makahiki.