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左旋对羟基苯甘氨酸邓钾盐
CAS号：69416-61-1
分子式：C13H14O5NK 分子量：303.3
外 观 白色结晶性粉末
含 量（高氯酸法）≥99%
水 分（卡氏法）≤0.3%
PH值（10%水溶液）≤9
吸光度5% H2O 420nm≤0.05
比旋光度[a]2D° -86°～ -90°
Fe离子≤10ppm
用 途:左旋对羟基苯甘氨酸邓钾盐 是B-内酰胺类半合成抗生素的主要侧链，是阿莫西林以及头孢类抗生素的必需中间体。
D-(-)-A-4-HYDROXYPHENYLGLYCINE DANE SALT METHYL POTASSIUM
CAS: 69416-61-1
Formula : C13H14O5NK MW: 303.3
Appearance white crystalline powder
Content ( perchloric acid method ) ≥99%
Water points ( card 's method ) ≤0.3%
PH (10 % solution ) ≤9
Absorbance 5% H2O 420nm≤0.05
Specific rotation [a] 2D ° -86 ° ~ -90 °
Fe ion ≤10ppm
Uses : is the major lactam side chain within B- semi-synthetic antibiotics , amoxicillin and cephalosporins
Necessary intermediates for antibiotics .
