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Oxytetracycline dihydrate

Molecular Structure:
MDL:
MFCD00003700
Molecular Formula:
C22H24N2O9·2H2O
Molecular Weight:
496.46
Alias:
土霉素碱
Product order:
Name Specifications Packing Price Delivery
Oxytetracycline dihydrate 97% 100g RMB 1284.8 促销
Oxytetracycline dihydrate 97% 25g RMB 413.6 促销
Oxytetracycline dihydrate 97% 5g RMB 167.2 促销
Quality Standard:
外观Appearance                          黄色结晶粉末
红外光谱鉴别Infrared spectrometry       符合
纯度Purity                              97% (HPLC)
比旋光度Specific rotation [a]20/D       +203.0 ~ +216.0°(c=1, 0.1 M HCl)
水分Water                               6 ~ 9%
吸收度353nm(1%,1cm)                     290-310
杂质吸收度430nm                         ≤0.25
杂质吸收度490nm                         ≤0.20
重金属Heavy metals                      ≤50ppm
硫酸灰分                                ≤0.5%
Storage:
阻止aminoacyl-tRNA结合到30S亚单元上,抑制蛋白质合成(延长期)。
抗菌谱: 革兰氏阴性和阳性菌
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