Merck
Todas las fotos(4)

C0857

Sigma-Aldrich

Chloramphenicol

meets USP testing specifications

Sinónimos:
D-(−)-threo-2-Dichloroacetamido-1-(4-nitrophenyl)-1,3-propanediol, D-(−)-threo-2,2-Dichloro-N-[β-hydroxy-α-(hydroxymethyl)-β-(4-nitrophenyl)ethyl]acetamide, Chloromycetin, D-threo-2,2-Dichloro-N-[β-hydroxy-α-(hydroxymethyl)-4-nitrophenethyl]acetamide
Fórmula lineal:
Cl2CHCONHCH(CH2OH)CH(OH)C6H4NO2
Número de CAS:
Peso molecular:
323.13
Beilstein:
2225532
Número de EC:
Número MDL:
ID de la sustancia en PubChem:
NACRES:
NA.21

Nivel de calidad

300

Agency

USP/NF
meets USP testing specifications

ensayo

97.0-103.0%

formulario

crystalline

mp

148-150 °C (lit.)

solubilidad

H2O: insoluble 100% (practically)

espectro de actividad antibiótica

viruses

application(s)

pharmaceutical (small molecule)

Modo de acción

protein synthesis | interferes

SMILES string

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 key

WIIZWVCIJKGZOK-RKDXNWHRSA-N

Gene Information

human ... CYP1A2(1544)

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Descripción general

Chemical structure: phenicole

Envase

25, 100, 500 g in poly bottle

Aplicación

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.

Acciones bioquímicas o fisiológicas

Mode of Action: Chloramphenicol inhibits bacterial protein synthesis by blocking the peptidyl transferase step by binding to the 50S ribosomal subunit and preventing attachment of aminoacyl tRNA to the ribosome. It also inhibits mitochondrial and chloroplast protein synthesis and ribosomal formation of (p)ppGpp, de-pressing rRNA transcription.

Mode of Resistance: Use of chloramphenicol acetyltransferase will acetylate the product and inactivate it.

Antimicrobial Spectrum: This is a broad spectrum antibiotic against gram-positive and gram-negative bacteria, and is used mainly for ophthalmic and veterinary purposes.

Precaución

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.

Nota de preparación

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.

pictogramas

CorrosionHealth hazard

Palabra de señalización

Danger

Frases de peligro

Clasificaciones de peligro

Carc. 2 - Eye Dam. 1 - Repr. 2

Código de clase de almacenamiento

11 - Combustible Solids

WGK

WGK 3

Equipo de protección personal

Eyeshields, Gloves, type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges

Certificado de Análisis

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Certificado de origen

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Anthony J Brzoska et al.
PloS one, 8(2), e56090-e56090 (2013-02-15)
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
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.
Uwe Richter et al.
Current biology : CB, 23(6), 535-541 (2013-03-05)
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.
Stephanie Petrella et al.
Antimicrobial agents and chemotherapy, 52(10), 3725-3736 (2008-07-16)
Two clinical strains of Escherichia coli (2138) and Enterobacter cloacae (7506) isolated from the same patient in France and showing resistance to extended-spectrum cephalosporins and low susceptibility to imipenem were investigated. Both strains harbored the plasmid-contained bla(TEM-1) and bla(KPC-2) genes.

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