C0857
氯霉素，大包装
meets USP testing specifications
别名:
D-(−)-苏-2,2-二氯-N-[β-羟基-α-(羟甲基)-β-(4-硝基苯基)乙基]乙酰胺, D-(−)-苏-2-二氯乙酰胺基-1-(4-硝基苯基)-1,3-丙二醇, D-苏-2,2-二氯-N-β[-羟基-α-(羟甲基)-4-硝基苯乙基]乙酰胺, 氯霉素
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所有图片(4)
About This Item
线性分子式:
Cl2CHCONHCH(CH2OH)CH(OH)C6H4NO2
CAS号:
分子量:
323.13
Beilstein:
2225532
EC號碼:
MDL號碼:
分類程式碼代碼:
51102831
PubChem物質ID:
NACRES:
NA.21
推荐产品
agency
USP/NF
meets USP testing specifications
品質等級
化驗
97.0-103.0%
形狀
crystalline
mp
149-153 °C (lit.)
溶解度
H2O: insoluble 100% (practically)
抗生素活性譜
viruses
應用
pharmaceutical (small molecule)
作用方式
protein synthesis | interferes
儲存溫度
2-8°C
SMILES 字串
OC[C@@H](NC(=O)C(Cl)Cl)[C@H](O)c1ccc(cc1)[N+]([O-])=O
InChI
1S/C11H12Cl2N2O5/c12-10(13)11(18)14-8(5-16)9(17)6-1-3-7(4-2-6)15(19)20/h1-4,8-10,16-17H,5H2,(H,14,18)/t8-,9-/m1/s1
InChI 密鑰
WIIZWVCIJKGZOK-RKDXNWHRSA-N
基因資訊
human ... CYP1A2(1544)
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一般說明
Chemical structure: phenicole
應用
Chloramphenicol is a synthetic antibiotic, isolated from strains of Streptomyces venezuelae. It is often used for bacterial selection in molecular biology applications at 10-20 μg/mL and as a selection agent for transformed cells containing chloramphenicol reistance genes.
生化／生理作用
作用机制：氯霉素通过与50S核糖体亚基结合并阻止氨酰基tRNA附着于核糖体来阻断肽基转移酶步骤，从而抑制细菌蛋白质的合成。 它还抑制线粒体和叶绿体蛋白的合成以及（p）ppGpp的核糖体形成，从而抑制rRNA的转录。
耐药性机制：使用氯霉素乙酰转移酶会使产物乙酰化并使其失活。
抗菌谱：这是一种针对革兰氏阳性和革兰氏阴性细菌的广谱抗生素，主要用于眼科和兽医目的。
耐药性机制：使用氯霉素乙酰转移酶会使产物乙酰化并使其失活。
抗菌谱：这是一种针对革兰氏阳性和革兰氏阴性细菌的广谱抗生素，主要用于眼科和兽医目的。
注意
Stock solutions should be stored at 2-8°C and are stable at 37°C for 5 days. Aqueous solutions are neutral and stable over a wide pH range, with 50% hydrolysis occurring after 290 days. Use of a borax buffered solution reduces this number to 14%. Solutions should be protected from light as photochemical decomposition results in a yellowing of the solution. Heating aqueous solutions at 115°C for 30 minutes results in a 10% loss of chloramphenicol.
準備報告
Stock solutions can be prepared directly in the vial at any recommended concentration. A solution at 50 mg/mL in ethanol yields a clear, very faint, yellow solution. Degradation of chloramphenicol in aqueous solution is catalyzed by general acids and bases. This rate of degradation is independent of the ionic strength and pH.
訊號詞
Danger
危險聲明
危險分類
Carc. 2 - Eye Dam. 1 - Repr. 2
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 3
個人防護裝備
Eyeshields, Gloves, type P3 (EN 143) respirator cartridges
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Proliferating cells require coordinated gene expression between the nucleus and mitochondria in order to divide, ensuring sufficient organelle number in daughter cells [1]. However, the machinery and mechanisms whereby proliferating cells monitor mitochondria and coordinate organelle biosynthesis remain poorly understood.
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Blood transfusions are critically important in many medical procedures, but the presence of antigens on red blood cells (RBCs, erythrocytes) means that careful blood-typing must be carried out prior to transfusion to avoid adverse and sometimes fatal reactions following transfusion.
J N de Almeida Júnior et al.
Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases, 20(8), 784-790 (2013-12-21)
Trichosporon spp. have recently emerged as significant human pathogens. Identification of these species is important, both for epidemiological purposes and for therapeutic management, but conventional identification based on biochemical traits is hindered by the lack of updates to the species
David G Kirk et al.
Applied and environmental microbiology, 80(16), 5141-5150 (2014-06-15)
Clostridium botulinum produces heat-resistant endospores that may germinate and outgrow into neurotoxic cultures in foods. Sporulation is regulated by the transcription factor Spo0A and the alternative sigma factors SigF, SigE, SigG, and SigK in most spore formers studied to date.
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