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Merck

C1863

Sigma-Aldrich

氯霉素,大包装

Biotechnology Performance Certified, suitable for plant cell culture

别名:

D-(−)--2,2-二氯-N-[β-羟基-α-(羟甲基)-β-(4-硝基苯基)乙基]乙酰胺, D-(−)--2-二氯乙酰胺基-1-(4-硝基苯基)-1,3-丙二醇, D--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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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:
41116107
PubChem物質ID:

等級

Biotechnology Performance Certified

形狀

crystalline

技術

cell culture | plant: suitable

雜質

endotoxin, tested

mp

149-153 °C (lit.)

溶解度

ethanol: soluble 100%

抗生素活性譜

Gram-negative bacteria
Gram-positive bacteria
mycobacteria
mycoplasma

作用方式

protein synthesis | interferes

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。

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.

其他說明

Keep container tightly closed in a dry and well-ventilated place. Light sensitive.

象形圖

Health hazardCorrosion

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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Members of the genus Acinetobacter have been the focus recent attention due to both their clinical significance and application to molecular biology. The soil commensal bacterium Acinetobacter baylyi ADP1 has been proposed as a model system for molecular and genetic
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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
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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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