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Chloramphenicol

Cas:
56-75-7
Molecular Structure:
MDL:
MFCD00078159
Molecular Formula:
C11H12Cl2N2O5; Cl2CHCONHCH(CH2OH)CH(OH)C6H4NO2
Molecular Weight:
323.13
Alias:
左旋霉素,左霉素,D(-)-苏-1-对硝基苯基-2-二氯乙酰胺基-1,3-丙二醇,D-苏式-(-)-N-[α-(羟基甲基)-β-羟基-对硝基苯乙基]-2,2-二氯乙酰胺 D(−)-threo-2,2-Dichloro-N-[β-hydroxy-α-(hydroxymethyl)-β-(4-nitrophenyl)ethyl]acetamide D-(−)-threo-2-Dichloroacetamido-1-(4-nitrophenyl)-1,3-propanediol Chloromycetin® D-threo-2,2-Dichloro-N-[β-hydroxy-α-(hydroxymethyl)-4-nitrophenethyl]acetamide D-(−)-threo-2,2-Dichloro-N-[β-hydroxy-α-(hydroxymethyl)-β-(4-nitrophenyl)ethyl]acetamide D-(−)-threo-2-Dichloroacetamido-1-(4-nitrophenyl)-1,3-propanediol
Product order:
Name Specifications Packing Price Delivery
Chloramphenicol 98% 10g RMB 132 现货
Chloramphenicol 用于植物细胞培养 25G RMB 715 现货
Chloramphenicol 98% 500g RMB 1375 Consulting service
Chloramphenicol 98% 100g RMB 418 现货
Chloramphenicol 98% 25g RMB 187 现货
Chloramphenicol 98% 5g RMB 82.5 现货
Character:
白色、灰白色或黄白色结晶粉末,溶解度:2.5 g/L 水(25℃),150.8 mg/ml 丙二醇。 溶于甲醇、乙醇、丁醇、丙酮和乙酸乙酯,微溶于醚,不溶于苯和石油醚。
熔点:149-152℃
[a]20/D:18.5°(c=6, C2H5OH)
Quality Standard:
98%:

外观Appearance                          白色、灰白色或黄白色结晶粉末
红外光谱鉴别Infrared spectrometry       符合
纯度Purity                              98.0 - 102.0% (银量滴定)
纯度Purity                              ≥98.0% (HPLC)
熔点Melting point                       149°C - 152°C
干燥损失Loss on drying                  <0.5 % (105°C)
比旋光度Specific rotation [a]20/D       +18.5°~ +20.5°(c=6, ethanol)


品级Grade                               植物细胞培养测试级  
                                  (plant cell culture tested)
外观Appearance                          白色至类白色粉末
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥98.0% (HPLC)  
熔点Melting point                       149°C - 152°C
干燥损失Loss on drying                  <0.5 % (105°C)
醇溶解试验solubility in ETHANOL         50 MG/ML,Clear colorless to light yellow solution
比旋光度Specific rotation [a]20/D       +18.5°~ +20.5°(c=6, ethanol)


品级Grade                               USP级  
                                 (meets USP testing specifications)
鉴别试验Identity                        PASS
熔点Melting point                       149°C - 153°C  
比旋光度Specific rotation [a]20/D       +17.0 ° ~ +20.0 °
结晶试验Crystallinity                   PASS
PH TEST                                 4.5 ~ 7.5
色谱纯度Chromatographic purity          PASS
含量ASSAY                               97.0% ~ 103.0%
溶剂残留Residual solvents               MEETS THE REQUIREMENTS 

Storage:
室温保存
用途  在转肽酶(peptidyl transferase)步骤抑制在50S 核糖体亚单元上的翻译。
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