24小时热门版块排行榜    

查看: 294  |  回复: 1

ddlong221

金虫 (小有名气)

[求助] 七烯大环内脂类抗生素怎么溶解??

七烯大环内脂类抗生素怎么溶解??我买的古曲霉素(Hachimycin)和哈霉素(hamycin)在乙腈,甲醇中溶解不了。在碱性溶液中溶解,但是检测不到。请各位帮忙分析下。有做过这方面检测的请告知溶解方法!
另,谁有杀假丝菌素D(Candicidin D),可否贡献点做标品?
先谢谢大家了!
回复此楼
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

痴夷子皮

版主 (文坛精英)

老痞

优秀版主优秀版主

【答案】应助回帖

★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
感谢参与,应助指数 +1
豆哥: 金币+2, 谢谢参与交流 2012-05-11 14:09:09
ddlong221: 金币+10, 有帮助 2012-05-11 15:52:41
Hachimycin
Properties: Yellow crystals. Acid reaction. Forms a water-sol sodium salt. Can be pptd as a water-insol salt by acridine derivs such as acriflavine, by sulfa drugs such as homosulfanilamide, by basic antibiotics such as streptomycin base, by enzymes such as papain and lysozyme, by dyes such as methylene blue, and by metallic salts such as CaCl2. LD50 i.p. in mice: 0.05 mg/10-12 g mouse (Hosoya).

hamycin
Properties: Yellow amorphous powder, no definite mp, decomp 160°. [a]D25+216°. uv max (80% methanol): 383 nm (E1%1cm 916). An amphoteric compd. Almost insol in water, benzene, chloroform, dry lower aliphatic alcohols, ether. Sol in basic solvents such as pyridine, collidine, and in aq lower alcohols. In concd H2SO4 gives stable blue color; no coloration with ferric chloride or with HCl. LD50 i.v. in mice (using sodium carboxymethyl cellulose as a vehicle): 6.16 mg/kg (Williams). Also reported as LD50 i.v. in Swiss mice (using a colloidal suspension): 1.20 mg/kg (Parekh, Dave).
守候在风中的宁静。
2楼2012-05-11 13:58:01
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 ddlong221 的主题更新
信息提示
请填处理意见